# Chart2020 Lite vs TVPS Calc

The clearest difference is review sentiment: TVPS Calc at 100% against Chart2020 Lite's 0%. TVPS Calc also leads on in-app purchases (none vs 4) and update cadence (every 2 weeks vs every 3 months). Chart2020 Lite's advantage is price (Free vs $14.99). On ads and iOS requirement there is nothing between them.

Chart2020 Lite is free to download; TVPS Calc costs $14.99 up front. Chart2020 Lite sells 4 in-app purchases, starting at $7.99 per 7 days. TVPS Calc asks for nothing beyond the download.

Chart2020 Lite ships an update every 3 months, TVPS Calc every 2 weeks. The most recent releases landed on October 14, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Chart2020 Lite | TVPS Calc |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/chart2020-lite/id1364522406/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Subscription | **Paid** |
| Size | 58 MB | 25 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Shemesh Health Solutions PTY Ltd](https://appshunter.io/developer/578849338) | [Dokitek](https://appshunter.io/developer/1732067207) |

## What reviewers say

### Chart2020 Lite

[App page](https://appshunter.io/ios/app/chart2020-lite/id1364522406)

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:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $7.99 | per 7 days |
| Weekly Subscription | $7.99 | per 7 days |
| Monthly Subscription | $19.99 | per month |
| Yearly Subscription | $149.99 | per year |


### TVPS Calc

[App page](https://appshunter.io/ios/app/tvps-calc/id6478171169)

This application simplifies administering and analyzing TVPS-4 tests. It allows for complete or partial test completion, raw score entry, and detailed results visualization including age and percentile equivalents. Generate and share PDF reports, and maintain a history of past tests, all stored offline for data confidentiality.

**Highlights:** Complete or partial TVPS-4 tests, Raw score entry, Results visualization (age, percentile), PDF report generation, Test history and search, 100% offline data storage

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Chart2020 Lite free?

Chart2020 Lite is free to download, with in-app purchases available.

### Is TVPS Calc free?

TVPS Calc costs $14.99, with no in-app purchases.

### Do Chart2020 Lite or TVPS Calc have ads?

Neither Chart2020 Lite nor TVPS Calc shows ads.

### Which is updated more often, Chart2020 Lite or TVPS Calc?

Chart2020 Lite ships an update every 3 months, and TVPS Calc every 2 weeks. Most recently, Chart2020 Lite was updated on October 14, 2026 and TVPS Calc on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*