# MathSnap vs Libstackz

The clearest difference is in-app purchases: Libstackz at none against MathSnap's 8. MathSnap's advantage is update cadence (every 3 weeks vs every 3 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. MathSnap sells 8 in-app purchases, starting at $6.99 per 7 days. Libstackz asks for nothing beyond the download.

MathSnap ships an update every 3 weeks, Libstackz every 3 months. The most recent releases landed on October 30, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | MathSnap | Libstackz |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (1.4K ratings)](https://appshunter.io/ios/app/mathsnap-ai-math-solver/id6448665845/reviews)** | — |
| Number of ratings | **1.4K** | — |
| Positive reviews | 69.7% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 48 MB | 41 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [42 Digital](https://appshunter.io/developer/1484108329) | [Ziqx CC](https://appshunter.io/developer/1874658523) |

## What reviewers say

### MathSnap

[App page](https://appshunter.io/ios/app/mathsnap-ai-math-solver/id6448665845)

This AI-powered app acts as a personal tutor, helping users solve math, science, liberal arts, and economics problems. It offers step-by-step explanations, a glossary, and personalized guidance to enhance understanding and mastery of various subjects.

**Highlights:** AI problem solver via photo scan, Step-by-step explanations, Covers math, science, liberal arts, economics, Glossary for terms and concepts, Personalized AI tutor support, Word problem and geometry assistance

**Features:** macOS Compatibility

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PhotoBrain | $6.99 | per 7 days |
| AI Math Solutions | $6.99 | per 7 days |
| AI Math solutions | $19.99 | per year |
| PhotoBrain Yearly Subscription | $29.99 | per year |
| PhotoBrain | $39.99 | per year |
| Lifetime Access | $39.99 | one-time |
| Lifetime Access | $59.99 | one-time |
| Lifetime Access | $79.99 | one-time |

**What reviewers like**

- 👍 Helpful app
- ⭐️ Great app
- 🤩 Accurate and correct answers
- 🧠 Tutors and explains well
- 💯 Perfect app

**What reviewers complain about**

- 💰 Needs to be free
- 🔒 Paywall limits usage
- 🐛 Doesn't always work
- 📷 Camera issues detecting questions
- 🚫 Predatory with subscriptions

**Reported bugs**

- Camera can't detect questions
- Doesn't provide answers without payment
- Subscription issues

**Requested features**

- Make the app free
- Improve camera detection
- Provide more free usage


### Libstackz

[App page](https://appshunter.io/ios/app/libstackz/id6758733568)

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

**In-app purchases:** none


## Frequently asked questions

### Is MathSnap free?

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

### Is Libstackz free?

Libstackz is free to download, with no in-app purchases.

### Do MathSnap or Libstackz have ads?

Neither MathSnap nor Libstackz shows ads.

### Which is updated more often, MathSnap or Libstackz?

MathSnap ships an update every 3 weeks, and Libstackz every 3 months. Most recently, MathSnap was updated on October 30, 2026 and Libstackz on October 23, 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.*