# Notiffy vs ByWhen

The clearest difference is device support: Notiffy at 3 against ByWhen's 1. Notiffy also leads on iOS requirement (15.1 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Notiffy sells 3 in-app purchases, starting at $2.99 per month and ByWhen sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

Notiffy ships an update weekly, ByWhen every 5 days. The most recent releases landed on October 20, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Notiffy | ByWhen |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 5 days** |
| Size | 65 MB | 10 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [APOSTOLOS TSEMPELIS](https://appshunter.io/developer/1863145564) | [NiONlite LLC](https://appshunter.io/developer/1891899842) |

## What reviewers say

### Notiffy

[App page](https://appshunter.io/ios/app/notiffy/id6756832771)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Notiffy Premium – Monthly | $2.99 | per month |
| Notiffy Premium – 6 Months | $12.95 | per 6 months |
| Notiffy Premium – Yearly | $24.99 | per year |


### ByWhen

[App page](https://appshunter.io/ios/app/bywhen-deadline-planner/id6778767584)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Annual Premium | $39.99 | per year |
| Lifetime Premium | $79.99 | one-time |


## Frequently asked questions

### Is Notiffy free?

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

### Is ByWhen free?

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

### Do Notiffy or ByWhen have ads?

Neither Notiffy nor ByWhen shows ads.

### Which is updated more often, Notiffy or ByWhen?

Notiffy ships an update weekly, and ByWhen every 5 days. Most recently, Notiffy was updated on October 20, 2026 and ByWhen 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.*