# Ultraviolet vs Remindify

The clearest difference is rating: Remindify at 5.0 against Ultraviolet's 1.0. Remindify also leads on update cadence (every 3 days vs every 23 months). Ultraviolet's advantage is in-app purchases (none vs 3) and iOS requirement (11.0 vs 18.0). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. Remindify sells 3 in-app purchases, starting at $1.99 per month. Ultraviolet asks for nothing beyond the download.

Remindify holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Ultraviolet ships an update every 23 months, Remindify every 3 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Ultraviolet | Remindify |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/ultraviolet/id1576208393/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/remindify-lock-screen-todo/id6770261039/reviews)** |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 91.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 3 days** |
| Monetization | — | Ad-supported |
| Size | 21 MB | 73 MB |
| Requires iOS | **11.0** | 18.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [claxio.com](https://appshunter.io/developer/1165013290) | [CROSSEDGE Inc.](https://appshunter.io/developer/898646263) |

## What reviewers say

### Ultraviolet

[App page](https://appshunter.io/ios/app/ultraviolet/id1576208393)

**Features:** macOS Compatibility

**In-app purchases:** none


### Remindify

[App page](https://appshunter.io/ios/app/remindify-lock-screen-todo/id6770261039)

Manage your to-dos and reminders directly from your iPhone's Lock Screen. Mark tasks complete with a single tap without unlocking your device. Quickly add new items via Siri, the Action Button, or the Share Sheet.

**Highlights:** Lock Screen Live Activity, One-tap task completion, Add tasks via Action Button/Siri, Share Sheet integration, Inline editing, 24-hour completed task view, Lock Screen widgets

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remindify Pro Monthly | $1.99 | per month |
| Remindify Pro Yearly | $14.99 | per year |
| Remindify Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Ultraviolet free?

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

### Is Remindify free?

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

### Which has better reviews, Ultraviolet or Remindify?

Remindify is rated higher. Ultraviolet averages 1.0 out of 5 from 1 ratings, while Remindify averages 5.0 from 2 ratings.

### Do Ultraviolet or Remindify have ads?

Neither Ultraviolet nor Remindify shows ads.

### Which is updated more often, Ultraviolet or Remindify?

Ultraviolet ships an update every 23 months, and Remindify every 3 days. Most recently, Ultraviolet was updated on October 24, 2026 and Remindify on October 25, 2026.

---

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