# 1st 1000 Days vs Differ

The clearest difference is review sentiment: Differ at 100% against 1st 1000 Days's 0%. Differ also leads on update cadence (every 3 weeks vs every 14 months). 1st 1000 Days's advantage is in-app purchases (none vs 4). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Differ sells 4 in-app purchases, starting at $2.99 per month. 1st 1000 Days asks for nothing beyond the download.

1st 1000 Days ships an update every 14 months, Differ every 3 weeks. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | 1st 1000 Days | Differ |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | **Every 3 weeks** |
| Monetization | **Free** | Freemium |
| Size | 91 MB | 35 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [The Early Childhood Commission](https://appshunter.io/developer/1491664191) | [Ryno Claassen](https://appshunter.io/developer/1529941079) |

## What reviewers say

### 1st 1000 Days

[App page](https://appshunter.io/ios/app/1st-1000-days/id1491664192)

This app assists caregivers in Jamaica by tracking child development milestones and critical events. It also helps locate early childhood and childcare facilities across the island.

**Highlights:** Track child milestones, Manage critical child events, Locate childcare facilities, Support for Jamaican caregivers

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

**In-app purchases:** none


### Differ

[App page](https://appshunter.io/ios/app/differ-worksheet-creator/id1534932488)

Create custom math worksheets for young learners in minutes. Select activities, adjust difficulty, and save or share as PDFs. Ideal for teachers and parents supporting Grade 1-3 students.

**Highlights:** Customizable worksheet creation, Grade 1-3 activities, Multiple language options, Adjustable difficulty and question count, Save and share as PDF, Handwriting practice elements

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month of Premium | $2.99 | per month |
| 3 Months of Premium | $7.99 | per 3 months |
| 6 Months of Premium | $15.49 | per 6 months |
| 1 Year of Premium | $28.49 | per year |


## Frequently asked questions

### Is 1st 1000 Days free?

1st 1000 Days is free to download, with no in-app purchases.

### Is Differ free?

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

### Do 1st 1000 Days or Differ have ads?

Neither 1st 1000 Days nor Differ shows ads.

### Which is updated more often, 1st 1000 Days or Differ?

1st 1000 Days ships an update every 14 months, and Differ every 3 weeks. Most recently, 1st 1000 Days was updated on October 26, 2026 and Differ on October 22, 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.*