# Exponential Growth Calculator vs Terpsi

The clearest difference is iOS requirement: Exponential Growth Calculator at 15.0 against Terpsi's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Exponential Growth Calculator sells 8 one-off in-app purchases and Terpsi sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Exponential Growth Calculator ships an update every 3 weeks, Terpsi every 2 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Exponential Growth Calculator | Terpsi |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/exponential-growth-calculator/id1662901079/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 180 MB | 16 MB |
| Requires iOS | **15.0** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Alberto Cebada Aleu](https://appshunter.io/developer/6780994358) |

## What reviewers say

### 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 |


### Terpsi

[App page](https://appshunter.io/ios/app/terpsi-dance-video-practice/id6780994356)

**Features:** Apple Watch app

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Terpsi Plus | $9.99 | one-time |


## Frequently asked questions

### Is Exponential Growth Calculator free?

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

### Is Terpsi free?

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

### Do Exponential Growth Calculator or Terpsi have ads?

Neither Exponential Growth Calculator nor Terpsi shows ads.

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

Exponential Growth Calculator ships an update every 3 weeks, and Terpsi every 2 weeks. Most recently, Exponential Growth Calculator was updated on November 3, 2026 and Terpsi on October 31, 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.*