# Day Zero vs # Simple Graph

The clearest difference is in-app purchases: Day Zero at none against # Simple Graph's 2. # Simple Graph's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 18.6). On price and ads there is nothing between them.

Both are free to download. # Simple Graph sells 2 in-app purchases, starting at $2.99 per month. Day Zero asks for nothing beyond the download.

## The numbers

| Metric | Day Zero | # Simple Graph |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 9 days |
| Size | 2 MB | 50 MB |
| Requires iOS | 18.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dmitry Sergeev](https://appshunter.io/developer/1861146434) | [YUKI TANAIKE](https://appshunter.io/developer/478558546) |

## What reviewers say

### Day Zero

[App page](https://appshunter.io/ios/app/day-zero-focus-and-discipline/id6758271552)

**In-app purchases:** none


### # Simple Graph

[App page](https://appshunter.io/ios/app/simple-graph/id6761530584)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Graph Pro (Monthly) | $2.99 | per month |
| Graph Pro (Annual) | $27.00 | per year |


## Frequently asked questions

### Is Day Zero free?

Day Zero is free to download, with no in-app purchases.

### Is # Simple Graph free?

# Simple Graph is free to download, with in-app purchases available.

### Do Day Zero or # Simple Graph have ads?

Neither Day Zero nor # Simple Graph shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*