# Sliders Timer vs Castmates

The clearest difference is in-app purchases: Sliders Timer at none against Castmates's 3. Castmates's advantage is update cadence (every 2 days vs every 21 months) and rating (4.2 vs 4.0). On price, review sentiment, ratings volume and ads there is nothing between them.

Both are free to download. Castmates sells 3 in-app purchases, starting at $6.99 per month. Sliders Timer asks for nothing beyond the download.

Castmates holds the better App Store score, 4.2 against 4.0. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

Sliders Timer ships an update every 21 months, Castmates every 2 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | Sliders Timer | Castmates |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/sliders-timer/id6447552943/reviews) | **[4.2 (5 ratings)](https://appshunter.io/ios/app/castmates-ai-characters/id6785844694/reviews)** |
| Number of ratings | 4 | **5** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 2 days** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 33 MB | 74 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 17+ |
| Developer | [kenny caldieraro](https://appshunter.io/developer/1670640548) | [JOSIP MARKOVIC](https://appshunter.io/developer/1807732819) |

## What reviewers say

### Sliders Timer

[App page](https://appshunter.io/ios/app/sliders-timer/id6447552943)

Relive the magic of the 90s cult TV show, Sliders. This app lets you immerse yourself in the universe of Quinn, Rembrandt, Wade, and Arturo. Add a touch of nostalgia to your day or train like your favorite characters.

**Highlights:** 90s TV show nostalgia, Immerse in the Sliders universe, Train like characters, Add a touch of nostalgia

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

**In-app purchases:** none


### Castmates

[App page](https://appshunter.io/ios/app/castmates-ai-characters/id6785844694)

Engage in private, on-device AI chat stories with a diverse cast of characters. Create your own characters and scenarios, with conversations stored locally and working offline. Start for free and upgrade for unlimited messaging and custom character creation.

**Highlights:** On-device AI for privacy, Offline functionality, 35 pre-made characters, Custom character creation, Interactive storytelling, Session memory

**Features:** iPhone Duo support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Castmates Monthly | $6.99 | per month |
| Castmates Annual | $29.99 | per year |
| Castmates Lifetime | $44.99 | one-time |


## Frequently asked questions

### Is Sliders Timer free?

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

### Is Castmates free?

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

### Which has better reviews, Sliders Timer or Castmates?

Castmates is rated higher. Sliders Timer averages 4.0 out of 5 from 4 ratings, while Castmates averages 4.2 from 5 ratings.

### Do Sliders Timer or Castmates have ads?

Neither Sliders Timer nor Castmates shows ads.

### Which is updated more often, Sliders Timer or Castmates?

Sliders Timer ships an update every 21 months, and Castmates every 2 days. Most recently, Sliders Timer was updated on November 3, 2026 and Castmates on November 5, 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.*