# Vocal Image vs memoryOS

The clearest difference is review sentiment: memoryOS at 80% against Vocal Image's 25%. memoryOS also leads on rating (4.9 vs 4.5) and iOS requirement (15.2 vs 17.0). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Vocal Image sells 17 in-app purchases, starting at $7.99 per 7 days and memoryOS sells 23 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

memoryOS holds the better App Store score, 4.9 against 4.5. Both are backed by a comparable volume of ratings — 11K and 17K respectively. Written reviews point the same way: 25% of Vocal Image's written reviews are positive against 80% of memoryOS's.

Vocal Image ships an update every 9 days, memoryOS every 2 weeks. Both last shipped on October 31, 2026.

## The numbers

| Metric | Vocal Image | memoryOS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (11K ratings)](https://appshunter.io/ios/app/vocal-image-speaking-coach/id1535324205/reviews) | **[4.9 (17K ratings)](https://appshunter.io/ios/app/memoryos-memory-games/id1553283646/reviews)** |
| Number of ratings | 11K | **17K** |
| Positive reviews | 24.7% of reviews | **80.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #165 | **#75** |
| Size | 256 MB | 231 MB |
| Requires iOS | 17.0 | **15.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Vocal Image OU](https://appshunter.io/developer/1536338699) | [Encoder Inc.](https://appshunter.io/developer/1524669695) |

## What reviewers say

### Vocal Image

[App page](https://appshunter.io/ios/app/vocal-image-speaking-coach/id1535324205)

**Currently charting:** #165 Top Grossing · Education (US App Store)

Enhance your communication skills with AI-powered voice analysis and personalized training. Improve public speaking, interview confidence, and everyday conversations through bite-sized lessons and expert coaching.

**Highlights:** AI voice evaluation, Expert video coaching, Personalized training plans, Tongue twister drills, Daily radio-style lessons, Community feedback

**Features:** Family Sharing, Vision Pro support

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscription | $7.99 | per 7 days |
| Basic | $9.99 | per month |
| Vocal Image Plus: 1 Month | $12.99 | per month |
| Premium | $19.99 | per month |
| Train Voice & Speech: monthly | $19.99 | per month |
| 1-Month Subscription | $19.99 | per month |
| Premium for 3 months 60% | $24.99 | per 3 months |
| Vocal Image Plus: 1 Year | $39.99 | per year |
| Vocal Image: 1 Year 50% OFF | $49.99 | per year |
| Annual Subscription | $59.99 | per year |
| Premium for 12 months | $74.99 | per year |
| Vocal Image Plus: 1 Year | $79.99 | per year |
| Vocal Image Plus: 1 Year | $79.99 | per year |
| Vocal Image Plus: 1 Year | $89.99 | per year |
| Annual Subscription | $89.99 | per year |
| Improve your voice: annually | $99.99 | per year |
| Annual Subscription | $129.99 | per year |

**What reviewers like**

- 🚀 Great program
- 🚀 Effective voice training
- 👍 Noticeable voice improvements
- 👍 Helpful for voice-related professions
- 👍 Surprisingly effective

**What reviewers complain about**

- 🐛 Buggy and unreliable
- 🔒 Deceptive billing practices
- 🔒 Unauthorized charges
- 🔒 Difficult to cancel subscription
- 👎 Limited free features

**Reported bugs**

- Frequent crashes
- Login/password issues
- Inability to access premium features after purchase
- Inconsistent voice analysis results

**Requested features**

- More detailed voice analytics
- Ability to compare voice recordings over time
- Additional language/accent options
- More comprehensive exercise library
- Better explanation of exercises and how they work


### memoryOS

[App page](https://appshunter.io/ios/app/memoryos-memory-games/id1553283646)

**Currently charting:** #75 Top Free · Education, #96 Top Grossing · Education (US App Store)

Enhance your memory and focus with interactive lessons and a virtual mind palace game. Learn scientifically proven techniques to improve knowledge retention and recall a wide range of information, from names and numbers to complex data and entire books.

**Highlights:** Interactive bite-sized lessons, Virtual Mind Palaces game, Spaced repetition system, Scientifically proven techniques, Improve knowledge retention, Memorize diverse information

**Features:** Vision Pro support

**In-app purchases (23)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Student Weekly Plan | $3.99 | per 7 days |
| Student Monthly Plan | $5.99 | per month |
| Expert Weekly Plan | $6.99 | per 7 days |
| Essential Weekly Plan | $6.99 | per 7 days |
| Essential Monthly Plan | $14.99 | per month |
| Essential Monthly Plan | $14.99 | per month |
| Essential Monthly Plan | $16.99 | per month |
| Student 3 Months Plan | $19.99 | per 3 months |
| Expert Monthly Plan | $24.99 | per month |
| Expert Monthly Plan | $29.99 | per month |
| Expert 3 Months Plan | $49.99 | per 3 months |
| Expert 3 Months Plan | $69.99 | per 3 months |
| Expert 6 Months Plan | $89.99 | per 6 months |
| Essential Annual Plan | $89.99 | per year |
| Essential Annual Plan | $89.99 | per year |
| Essential Annual Plan | $89.99 | per year |
| Expert Annual Plan | $148.99 | per year |
| Expert Annual Plan | $149.99 | per year |
| Expert Annual Plan | $174.99 | per year |
| Expert Annual Plan | $174.99 | per year |
| 10 Hearts | $0.99 | one-time |
| 10 Loci Coins | $2.99 | one-time |
| 50 Loci Coins | $14.99 | one-time |

**What reviewers like**

- 🚀 Effective memory techniques
- 👍 Interactive and engaging
- 💡 Innovative use of memory palaces
- 🤩 Impressive results in a short time
- 🎉 Fun and enjoyable to use

**What reviewers complain about**

- 💰 Expensive subscription model
- 🐛 Buggy and crashes frequently
- 🤔 Confusing navigation and UI
- 🔒 Lack of transparency around pricing
- 🙄 Aggressive upselling and marketing tactics

**Reported bugs**

- Login issues and account management problems
- Frequent crashes and app instability
- Navigation and UI elements not working as expected
- Syncing issues between devices and lost progress
- Connectivity problems when using cellular data

**Requested features**

- More free content and lessons
- Ability to create custom memory palaces
- Better progress tracking and analytics
- Integration with other learning/productivity apps
- Offline mode for lessons and memory palaces


## Frequently asked questions

### Is Vocal Image free?

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

### Is memoryOS free?

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

### Which has better reviews, Vocal Image or memoryOS?

memoryOS is rated higher. Vocal Image averages 4.5 out of 5 from 11K ratings, while memoryOS averages 4.9 from 17K ratings.

### Do Vocal Image or memoryOS have ads?

Neither Vocal Image nor memoryOS shows ads.

### Which is updated more often, Vocal Image or memoryOS?

Vocal Image ships an update every 9 days, and memoryOS every 2 weeks. Most recently, Vocal Image was updated on October 31, 2026 and memoryOS on October 31, 2026.

### Which is more popular, Vocal Image or memoryOS?

Vocal Image currently peaks at #165 in the App Store charts, and memoryOS at #75. Chart position reflects recent download velocity rather than total install base.

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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.*