# Hologo vs Mental Math

The clearest difference is rating: Hologo at 4.4 against Mental Math's 3.7. Hologo also leads on ratings volume (194 vs 19) and iOS requirement (13.0 vs 15.0). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Hologo sells 4 in-app purchases, starting at $9.99 per month and Mental Math sells 4 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Hologo holds the better App Store score, 4.4 against 3.7. That said, the two scores are not equally well evidenced: Hologo has 194 ratings behind it against 19, so its average is the more settled of the two. Written reviews complicate that: 61% of Hologo's written reviews are positive against 63% of Mental Math's, so the app with the better star average is not the one people write more warmly about.

Hologo ships an update monthly, Mental Math every 5 weeks. The most recent releases landed on October 20, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Hologo | Mental Math |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (194 ratings)](https://appshunter.io/ios/app/hologo/id1293300157/reviews)** | [3.7 (19 ratings)](https://appshunter.io/ios/app/mental-math-arithmetic-games/id1628058449/reviews) |
| Number of ratings | **194** | 19 |
| Positive reviews | 60.7% of reviews | **62.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 5 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 319 MB | 91 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hologo World, Inc](https://appshunter.io/developer/1424074750) | [Mehul Mistri](https://appshunter.io/developer/1628058451) |

## What reviewers say

### Hologo

[App page](https://appshunter.io/ios/app/hologo/id1293300157)

This app provides a safe AI learning companion for children. Kids can engage in natural conversations, ask questions, and explore concepts through augmented reality, fostering deeper understanding and curiosity across various subjects.

**Highlights:** Kid-safe conversational AI, Immersive AR exploration, Curiosity-driven learning, Natural question-asking, Visual understanding

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Student Access | $9.99 | per month |
| Premium Teacher Subscription | $9.99 | per month |
| Student Subscription | $9.99 | one-time |
| Teacher Subscription | $9.99 | one-time |

**What reviewers like**

- 🚀 Great AI Tutor for Kids
- 🚀 Exceptional learning experience
- 👍 Life changing
- 👍 Fantastic for STEM learning
- 👍 Enjoyable and interactive

**What reviewers complain about**

- 🐛 Slow and crashes
- 🐛 Doesn't work reliably
- 🐛 Crashes and loading issues
- 🐛 Unusable, crashes frequently
- 🐛 Overheating issues

**Reported bugs**

- Downloading issues
- Crashes on launch
- Doesn't load past country/language selection
- Models and features don't work as expected

**Requested features**

- Add more topics like psychology, astronomy, etc.
- Improve stability and reduce crashes
- Add support for more languages
- Provide pricing information upfront


### Mental Math

[App page](https://appshunter.io/ios/app/mental-math-arithmetic-games/id1628058449)

This app teaches children arithmetic and calculation skills using an abacus and mental math techniques. It offers fun quizzes and practice problems to improve cognitive performance and mathematical ability.

**Highlights:** Abacus learning, Mental calculation techniques, Vedic math tricks, Addition, subtraction, multiplication, division, Quiz-based learning, Progress monitoring

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mental Math Premium | $0.99 | per month |
| Mental Math Premium | $1.99 | per 3 months |
| Mental Math Premium | $6.99 | per year |
| Premium Ad-Free | $0.99 | one-time |


## Frequently asked questions

### Is Hologo free?

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

### Is Mental Math free?

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

### Which has better reviews, Hologo or Mental Math?

Hologo is rated higher. Hologo averages 4.4 out of 5 from 194 ratings, while Mental Math averages 3.7 from 19 ratings.

### Do Hologo or Mental Math have ads?

Neither Hologo nor Mental Math shows ads.

### Which is updated more often, Hologo or Mental Math?

Hologo ships an update monthly, and Mental Math every 5 weeks. Most recently, Hologo was updated on October 20, 2026 and Mental Math on October 21, 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.*