# Memo vs Primalyst

The clearest difference is iOS requirement: Primalyst at 15.1 against Memo's 17.0. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Memo sells 10 in-app purchases, starting at $1.99 per 7 days and Primalyst sells 2 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

Primalyst holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 13 and 21 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Memo | Primalyst |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (13 ratings)](https://appshunter.io/ios/app/memo-screen-time-app-blocker/id6760178716/reviews) | **[5.0 (21 ratings)](https://appshunter.io/ios/app/primalyst/id6790513369/reviews)** |
| Number of ratings | 13 | **21** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | Every 4 days |
| Monetization | Freemium | Freemium |
| Size | 65 MB | 121 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 12+ | 17+ |
| Developer | [Dylan Bryan Miller](https://appshunter.io/developer/1814473747) | [BRYSON CLARK GIBBONS](https://appshunter.io/developer/6790513371) |

## What reviewers say

### Memo

[App page](https://appshunter.io/ios/app/memo-screen-time-app-blocker/id6760178716)

Sharpen your memory, attention, and mental flexibility with science-backed cognitive games. Measure your brain's performance and track improvements with personalized insights and adaptive challenges.

**Highlights:** 8 cognitive games, Brain Score Assessment, Adaptive difficulty, Daily challenges, Streak tracking, Progress insights, Privacy-focused data storage

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $1.99 | per 7 days |
| Memori Pro Monthly | $3.99 | per month |
| Memo Weekly | $4.99 | per 7 days |
| Memori Ultra Monthly | $6.99 | per month |
| Memori Pro Annual | $19.99 | per year |
| Memo Yearly, One-Time Offer | $24.99 | per year |
| Memo Yearly, One-Time Offer | $29.99 | per year |
| Memo Yearly | $39.99 | per year |
| Memo Yearly | $49.99 | per year |
| Memo Yearly | $49.99 | per year |


### Primalyst

[App page](https://appshunter.io/ios/app/primalyst/id6790513369)

This app provides science-backed guidance rooted in ancestral and evolutionary principles to help users live healthier lives. It offers an AI guide for personalized advice on diet, healing, and movement, alongside tools for nutrient tracking, circadian rhythm alignment, and habit building.

**Highlights:** Primalyst AI ancestral health guide, Nutrient tracking for animal foods, Circadian rhythm alignment, Gentle natural wake-up feature, Local farm and market finder, Habit tracking and non-negotiables, Community forum for ancestral living

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Primalyst | $24.99 | per month |
| Primalyst Pro | $149.99 | per year |


## Frequently asked questions

### Is Memo free?

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

### Is Primalyst free?

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

### Which has better reviews, Memo or Primalyst?

Primalyst is rated higher. Memo averages 4.8 out of 5 from 13 ratings, while Primalyst averages 5.0 from 21 ratings.

### Do Memo or Primalyst have ads?

Neither Memo nor Primalyst shows ads.

### Which is updated more often, Memo or Primalyst?

Memo ships an update every 4 days, and Primalyst every 4 days. Most recently, Memo was updated on October 25, 2026 and Primalyst on October 24, 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.*