# Baby Tracker vs Private Diary

The clearest difference is device support: Baby Tracker at 4 against Private Diary's 2. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Baby Tracker sells 2 one-off in-app purchases and Private Diary sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 8, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Baby Tracker | Private Diary |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/private-diary-scriptum/id6803934474/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | — | Freemium |
| Size | 92 MB | 53 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Juho Ilmari Kantola](https://appshunter.io/developer/1837193306) | [ANNR Studio](https://appshunter.io/developer/6785540709) |

## What reviewers say

### Baby Tracker

[App page](https://appshunter.io/ios/app/baby-tracker-vaava/id6759612808)

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-day Vaava Plus trial | Free | one-time |
| Vaava Plus | $14.99 | one-time |


### Private Diary

[App page](https://appshunter.io/ios/app/private-diary-scriptum/id6803934474)

This app provides a private digital journal experience where all entries are stored locally on your device. It offers daily prompts, voice-to-text input, photo attachments, and robust search capabilities. An optional upgrade unlocks advanced features like biometric lock, AI tidying, and PDF export.

**Highlights:** Daily writing prompts, Voice-to-text input, Photo and location attachments, Local storage and iCloud backup, Searchable journal entries, Optional AI writing assistance, PDF export

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Yearly | $17.99 | per year |
| Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is Baby Tracker free?

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

### Is Private Diary free?

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

### Do Baby Tracker or Private Diary have ads?

Neither Baby Tracker nor Private Diary shows ads.

### Which is updated more often, Baby Tracker or Private Diary?

Baby Tracker ships an update every 5 days, and Private Diary every 5 days. Most recently, Baby Tracker was updated on October 8, 2026 and Private Diary on October 4, 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.*