Comparison

Test Zraku vs Chart2020 Lite

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Test Zraku

Assess your vision with simple tests for common issues like myopia, farsightedness, and astigmatism. Submit your results to specialists for personalized advice on correction or treatment. Available in multiple languages.

Highlights
  • Vision acuity test
  • Myopia test
  • Farsightedness test
  • Color vision test
  • Astigmatism test
  • Submit results to specialists
Features
Read full description

Zdá se vám, že občas vidíte hůř? Malá písmenka mizí, vzdálenější objekty se rozmazávají, čáry nejsou rovné? Otestujte si svůj zrak. Výsledky svých testů můžete odeslat našim specialistům, kteří Vám poradí s případnou korekcí či léčbou. Tak s chutí do toho! ------ Very simple application for common users testing if vision correction is needed. It tests myopia, farseeing, visual acuity, color vision and astigmatism. The application is in Czech, Slovak, Polish, English language.

About

Chart2020 Lite

This app provides a digital eye chart with various testing options, including different chart types and masking features. It offers remote control capabilities via a companion iPhone app or an optional Bluetooth remote, making it suitable for professional and home use.

Highlights
  • Multiple chart types (Sloan/Snellen, Balancing, Astigmatism)
  • Customizable testing distance
  • Variety of letter/number/symbol sets
  • Masking and randomization options
  • Companion iPhone app for remote control
  • Optional Bluetooth remote control
Features
Read full description

Chart Types * Sloan / Snellen Charts * Balancing Charts * Astigmatism Charts Chart Features * Set exact testing testing distance * Quickly switch to near distance testing with distance selector * Letters, Numbers, Kids, E, C, HOTV, 6 Global Fonts * 4 Masking options * Randomize letter set Controllers * Control direct on the iPad * Use the companion iPhone app * See the displayed letters on the iPhone (no neck turning) * Control every feature from the iPhone * Order the Bluetooth Remote Control to control with a 6 button controller Uses * Ophthalmologist and Optometrists * Completely mobile for school testing * Emergency Room * Functional Evaluation Capacity for Companies * Home Use * Students The Chart2020 iPad App comes with a 30 day free trial. After this period you may purchase an auto-renewing subscription through an In-App Purchase. (If you do not maintain a subscription you can only use the App for thirty days and then it will expire) • Auto-renewable subscription • 1 month ($29.99) / 1 Year ($199.99) • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase. http://chart2020.com/privacy-policy https://www.chart2020.com/terms-of-use

Screenshots

Test Zraku4 screens

Verdict

The call

The clearest difference is in-app purchases: Test Zraku at none against Chart2020 Lite's 4. Test Zraku also leads on review sentiment (23% vs 0%) and device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Chart2020 Lite sells 4 in-app purchases, starting at $7.99 per 7 days. Test Zraku asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard5 real differences · 5 level
Test Zraku versus Chart2020 Lite: the parameters behind the verdict, then further details
ParameterTest ZrakuChart2020 Lite
PriceFreeFree
Rating—1.0 (1 ratings) — better
Positive reviews22.9% of reviews — better0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 3 monthsEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterSubscription
DevicesiPhone, iPad, iPod — betteriPad
Requires iOS9.0 — better12.0
Further details — not scored
Size11 MB58 MB
Age rating4+4+
DeveloperLenka TuzovaShemesh Health Solutions PTY Ltd

Customer experience

Test Zraku

Written reviews35 reviews
Positive22.9%
Neutral8.6%
Negative68.6%

Chart2020 Lite

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Test Zraku

No in-app purchases

4 purchases

Chart2020 Lite

Subscriptions4
  • Weekly Subscription3 Days trial$7.997 Days
  • Weekly Subscription1 Month trial$7.997 Days
  • Monthly Subscription1 Month trial$19.991 Month
Show 1 more
  • Yearly Subscription1 Month trial$149.991 Year

Questions

Is Test Zraku free?
Test Zraku is free to download, with no in-app purchases.
Is Chart2020 Lite free?
Chart2020 Lite is free to download, with in-app purchases available.
Do Test Zraku or Chart2020 Lite have ads?
Neither Test Zraku nor Chart2020 Lite shows ads.
Which is updated more often, Test Zraku or Chart2020 Lite?
Test Zraku ships an update every 3 months, and Chart2020 Lite every 3 months. Most recently, Test Zraku was updated on November 1, 2026 and Chart2020 Lite on November 2, 2026.

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