# Duometry vs Foldfish

The clearest difference is price: Foldfish at Free against Duometry's $2.99. Foldfish also leads on update cadence (daily vs every 3 days). Duometry's advantage is in-app purchases (none vs 4) and chart position (#101 vs unranked). On ads, device support and iOS requirement there is nothing between them.

Foldfish is free to download; Duometry costs $2.99 up front. Foldfish sells 4 one-off in-app purchases. Duometry asks for nothing beyond the download.

Duometry ships an update every 3 days, Foldfish daily. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Duometry | Foldfish |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/duometry/id6814650592/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | **Daily** |
| Monetization | Paid | — |
| Best chart rank | **#101** | — |
| Size | 4 MB | 51 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Arno Appenzeller](https://appshunter.io/developer/515339331) | [Jan Poncik](https://appshunter.io/developer/6815718868) |

## What reviewers say

### Duometry

[App page](https://appshunter.io/ios/app/duometry/id6814650592)

**Currently charting:** #101 Top Paid · Family, #196 Top Paid · Casual (US App Store)

Test your ability to accurately guess angles by matching a target angle. Play solo or compete with friends in a fun, offline game that requires no account. Features a daily challenge to keep your skills sharp.

**Highlights:** Match target angles, Solo and multiplayer modes, Daily challenges, Offline play, Free Measure on hinge devices

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

**In-app purchases:** none


### Foldfish

[App page](https://appshunter.io/ios/app/foldfish/id6824988199)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Handful of Coins | $0.99 | one-time |
| Bucket of Coins | $1.99 | one-time |
| Foldfish Gold | $3.99 | one-time |
| Chest of Coins | $3.99 | one-time |


## Frequently asked questions

### Is Duometry free?

Duometry costs $2.99, with no in-app purchases.

### Is Foldfish free?

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

### Do Duometry or Foldfish have ads?

Neither Duometry nor Foldfish shows ads.

### Which is updated more often, Duometry or Foldfish?

Duometry ships an update every 3 days, and Foldfish daily. Most recently, Duometry was updated on November 10, 2026 and Foldfish 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.*