# Tally vs Foldmetry

The clearest difference is update cadence: Foldmetry at every 2 weeks against Tally's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Tally sells 3 in-app purchases, starting at $3.99 per month and Foldmetry sells 2 in-app purchases, starting at $9.99 per year. Whichever you choose, the download price is not the number that matters.

Tally ships an update monthly, Foldmetry every 2 weeks. The most recent releases landed on September 9, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Tally | Foldmetry |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Size | 2 MB | 15 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SG APPs](https://appshunter.io/developer/1507658418) | [思迪 李](https://appshunter.io/developer/1448600251) |

## What reviewers say

### Tally

[App page](https://appshunter.io/ios/app/tally-mental-math-trainer/id6787205145)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Pro Yearly | $24.99 | per year |
| Pro Lifetime | $39.99 | one-time |


### Foldmetry

[App page](https://appshunter.io/ios/app/foldmetry-spatial-reasoning/id6792459865)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Foldmetry Pro Annual | $9.99 | per year |
| Foldmetry Pro Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is Tally free?

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

### Is Foldmetry free?

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

### Do Tally or Foldmetry have ads?

Neither Tally nor Foldmetry shows ads.

### Which is updated more often, Tally or Foldmetry?

Tally ships an update monthly, and Foldmetry every 2 weeks. Most recently, Tally was updated on September 9, 2026 and Foldmetry on September 14, 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.*