# Size test vs Exponential Growth Calculator

The clearest difference is price: Exponential Growth Calculator at Free against Size test's $0.99. Exponential Growth Calculator also leads on update cadence (fortnightly vs every 10 months) and device support (3 vs 1). Size test's advantage is in-app purchases (none vs 8). On ads and iOS requirement there is nothing between them.

Exponential Growth Calculator is free to download; Size test costs $0.99 up front. Exponential Growth Calculator sells 8 one-off in-app purchases. Size test asks for nothing beyond the download.

Size test ships an update every 10 months, Exponential Growth Calculator fortnightly. The most recent releases landed on May 19, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | Size test | Exponential Growth Calculator |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/exponential-growth-calculator/id1662901079/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 1 MB | 180 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Viacheslav Romanenko](https://appshunter.io/developer/1046372418) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Size test

[App page](https://appshunter.io/ios/app/size-test/id1059703529)

**In-app purchases:** none


### Exponential Growth Calculator

[App page](https://appshunter.io/ios/app/exponential-growth-calculator/id1662901079)

Instantly solve math problems and prepare for exams with step-by-step solutions. Visualize your function's development graphically by entering initial values, growth rates, or time. Access curated learning videos and manage your solutions.

**Highlights:** Instant step-by-step solutions, Graphical function development, Curated learning videos, Input feedback, Solution management, Anonymized data collection

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Remove Ads | $1.99 | one-time |
| Lifetime Access | $1.99 | one-time |


## Frequently asked questions

### Is Size test free?

Size test costs $0.99, with no in-app purchases.

### Is Exponential Growth Calculator free?

Exponential Growth Calculator is free to download, with in-app purchases available.

### Do Size test or Exponential Growth Calculator have ads?

Neither Size test nor Exponential Growth Calculator shows ads.

### Which is updated more often, Size test or Exponential Growth Calculator?

Size test ships an update every 10 months, and Exponential Growth Calculator fortnightly. Most recently, Size test was updated on May 19, 2026 and Exponential Growth Calculator on August 16, 2026.

---

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