About Us

Prüfengel offers authentic consumer tests in which real users share their experiences with products. Our tests are based on practical applications in everyday life and reflect the opinions of consumers. As we focus on consumer tests, we do not carry out any material, long-term or laboratory tests. The tests are carried out by 1-2 independent consumers over a period of 7-14 days. The exact test conditions can be viewed in the test plan of the respective test report – click here to go directly to the test plan.

Manufacturers provide the tested products free of charge. We charge a one-off test fee for carrying out the tests. In addition, manufacturers pay an annual licence fee for the use of the Prüfengel seal. We also receive a commission for linking to manufacturers’ websites. These remunerations have no influence on our test results or ratings.

We guarantee transparency and a fair evaluation. For a detailed insight into our comprehensive evaluation process, please click here.

Siumir
Index cards

Product description of the manufacturer

The flashcard set from the Siumir brand is a set of flashcards with practical accessories. These A8 flashcards are made of high-quality, environmentally friendly paper that can be written on both sides – for a pleasant writing experience and maximum usability. The cards are robust, tear- and wear-resistant, meaning they remain reliable even with frequent use.
Whether on the go, in class or at the desk – the sturdy kraft paper cover and practical loose-leaf rings make the cards easy to sort, reorganise and take with you wherever you go. Compact and handy, they fit in every pocket. Six different colours provide a better overview, making it easier to sort and structure content. This makes retrieving important information child’s play – a real boost for concentration and learning success. Versatile: Whether for learning vocabulary, taking notes, summarising or organising – these index cards are ideal companions for school, university, office or at home.

In the practical test, these index cards impressed with their practical format and versatile accessories .

  • Practical format (A8)
  • Six different colours
  • Versatile accessories
  • Packaged in plastic

The first impression

Packaging and contents

Here we take a closer look at the packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?

Here we take a closer look at the packaging. Sustainability is becoming an increasingly important factor. In addition, adequate protection of the product must of course also be guaranteed. Are the contents of the packaging complete and does the manufacturer make it as easy as possible for me to use the product straight away?

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Product protection

Carton is stable, product sufficiently protected

100

Points

Sustainability Packaging

No unnecessary packaging waste, the plastic film protects the product components

90

Points

Package contents & scope

Complete

100

Points

Instructions for use

Product is self-explanatory

100

points

TOTAL

98

points

Weighting: 20%
*Themaximum score is 100 points

This product was sent in a paper envelope that was well-suited to the size of the product .
Inside the envelope were the plastic-wrapped index cards. It would be desirable for the manufacturer to test a more environmentally friendly packaging option.
In addition to the index cards, the scope of delivery includes practical perforated rings for structuring the index cards and a small product flyer.
Detailed instructions for use are not included, but are not required.

The first time in the hand

Product finish and appearance

Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?

Before we start the practical test, we take a close look at the workmanship of the products. How high quality are the materials used? Are the look and feel satisfactory?

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Visual appearance

Attractive design

100

points

Workmanship

Very good workmanship

100

points

Stability

Very stable

100

points

Sustainability of the product

Not specified

80

points

OVERALL

95

points

Weighting: 20%
*Themaximum score is 100 points

When you pick up the index cards for the first time, you immediately notice the bright colours. The colour scheme makes it easier to structure the flashcards by topic and simplifies targeted use.
The surface of the index cards feels non-slip and not too smooth, so it can be assumed that they are easy to write on .
Overall, both the index cards and the perforated rings give a robust and high-quality impression, so it can be assumed that the cardscan be used for a long time.

This is what our practical test revealed

Does the manufacturer keep its advertising promises?

Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

Our practical test has the highest relevance and therefore weighting. Here, the product has to undergo a wide range of criteria and tests. We check the functions and product promises of the test article.

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Paper quality and thickness

Robust and high-quality paper

100

points

Writability with different pens

Writes well with different pens, without smudging

100

points

Tear resistance under normal use

Very good tear resistance

100

points

Colour fastness when exposed to light

Is given

100

points

Stackability and slip resistance

Can be stacked easily, non-slip surface

100

points

OVERALL

100

points

Weighting: 45%
*Themaximum score is 100 points

These index cards were subjected to an extensive practical test . With regard to the paper thickness, it was found that the individual index cards are robust and have a high-quality appearance. They have an appropriate thickness and good stability and are therefore ideal for their intended use. The surface of the cards was tested for writeability with a wide variety of pens. Whether gel pens, ballpoint pens, pencils or felt-tip pens – no smudging could be detected and the legibility of the individual pens is also good. The index cards passed the tear test – the material has good tear resistance and proved to be robust.
With regard to colour fastness when exposed to light, it was found that the colours remain vivid and unaltered in different lighting conditions. The index cards are easy to stack and have a non-slip surface.
Overall , this product impressed with its practical use and the high-quality perforated rings, which help with structured storage and organisation .

Test plan

You can find a detailed insight into the evaluation criteria of the practical part of the test and the distribution of points here. If you are also interested in the evaluation of our other test criteria, please read our document on the evaluation process.

Price/performance ratio

and consumer reviews

Finally, we analyse how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it?

Finally, we analyse how the product compares to the competition. Can it keep up with the competition in terms of price and quality? Would we generally recommend buying it?

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Price / performance ratio

Very good performance in the lower price segment

90

points

TOTAL

90

points

Weighting: 15%
*Themaximum score is 100 points

Prices of up to €13.00 are charged on the Internet for equivalent products . Very cheap products are available from as little as €6.00 . The index cards from Siumir are therefore currently in the lower price segment with a price of €8.49. For the quality and performance received, the price-performance ratio is very good.

Overall result

1. packaging & content

20%

98

points

2. product processing & appearance

20%

95

points

3. in the practical test

45%

100

points

4. price/performance & consumer reviews

15%

90

points

TOTAL

97

points

*Themaximum score is 100 points

Index cards
 of the brand 
Siumir
achieved
97
Points in our test and therefore passed. The test was carried out in the test period
06/25
and is stored in our database under the licence number
https://www.amazon.de/dp/B0DNT4V1CJ?th=1
. Further information on our test procedure can be found at www.pruefengel.de/testverfahren.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

The practical tests are based on careful observations and do not include long-term or laboratory tests. The test judgements reflect the personal impressions and opinions of the testers who try out the products in everyday use. We would like to emphasise that these evaluations do not claim to be exhaustive and may reflect both subjective and objective impressions. The evaluations are made to the best of our knowledge and belief, without any liability being assumed for the accuracy or completeness of the test results. It is important to note that our tests are not based on legal requirements, medical effects or specific ingredients of the products. We rely on the advertising claims and information provided by the manufacturers, but use of the information is always at your own risk. Our efforts are aimed at ensuring a serious and thorough testing procedure, which has been developed in a long and professional process in close co-operation with our testers.

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Evaluation process

You can find a detailed insight into our evaluation process, which forms the basis for our product ratings, here:

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