# Numerlo vs Byter

Numerlo and Byter are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Numerlo sells 2 in-app purchases, starting at $2.99 per month and Byter sells 4 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on September 10, 2026 and July 9, 2026 respectively.

## The numbers

| Metric | Numerlo | Byter |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | — | Free with in-app purchases |
| Size | 52 MB | 315 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nanxi Li](https://appshunter.io/developer/1869944574) | [Nutrimatics Inc.](https://appshunter.io/developer/1875403982) |

## What reviewers say

### Numerlo

[App page](https://appshunter.io/ios/app/numerlo-speed-math/id6757960037)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Annual Premium | $25.99 | per year |


### Byter

[App page](https://appshunter.io/ios/app/byter-swipe-and-code/id6758867559)

Sharpen essential engineering skills like debugging, architecture, and systems thinking through bite-sized, swipeable challenges. Practice across various high-impact fields with multiple challenge formats and instant AI feedback.

**Highlights:** Swipeable problem feed, In-app code editor, System design graph builder, Instant AI grading, Daily challenges and streaks, AI mentor for guidance, Skill insights and progress tracking

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Byter Pro Monthly | $14.99 | per month |
| Byter Max Monthly | $39.99 | per month |
| Byter Pro Annual | $129.99 | per year |
| Byter Max Annual | $334.99 | per year |


## Frequently asked questions

### Is Numerlo free?

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

### Is Byter free?

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

### Do Numerlo or Byter have ads?

Neither Numerlo nor Byter shows ads.

### Which is updated more often, Numerlo or Byter?

Numerlo ships an update every 3 days, and Byter every 3 days. Most recently, Numerlo was updated on September 10, 2026 and Byter on July 9, 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.*