# Sentinels Sidekick vs Arkham DeckbuildeR

The clearest difference is review sentiment: Sentinels Sidekick at 80% against Arkham DeckbuildeR's 33%. Sentinels Sidekick also leads on iOS requirement (12.0 vs 16.0). Arkham DeckbuildeR's advantage is price (Free vs $0.99) and in-app purchases (none vs 6). On ratings volume, ads and device support there is nothing between them.

Arkham DeckbuildeR is free to download; Sentinels Sidekick costs $0.99 up front. Sentinels Sidekick sells 6 one-off in-app purchases. Arkham DeckbuildeR asks for nothing beyond the download.

Arkham DeckbuildeR holds the better App Store score, 4.8 against 4.6. Both are backed by a comparable volume of ratings — 68 and 46 respectively. Written reviews complicate that: 80% of Sentinels Sidekick's written reviews are positive against 33% of Arkham DeckbuildeR's, so the app with the better star average is not the one people write more warmly about.

Sentinels Sidekick ships an update every 2 months, Arkham DeckbuildeR every 3 weeks. The most recent releases landed on September 25, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Sentinels Sidekick | Arkham DeckbuildeR |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.6 (68 ratings)](https://appshunter.io/ios/app/sentinels-sidekick/id525436193/reviews) | **[4.8 (46 ratings)](https://appshunter.io/ios/app/arkham-deckbuilder/id6446255632/reviews)** |
| Number of ratings | **68** | 46 |
| Positive reviews | **79.8% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 124 MB | 33 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 9+ | 9+ |
| Developer | [Handelabra Studio LLC](https://appshunter.io/developer/371135968) | [Vadym Pavlov](https://appshunter.io/developer/1137593885) |

## What reviewers say

### Sentinels Sidekick

[App page](https://appshunter.io/ios/app/sentinels-sidekick/id525436193)

This app streamlines tabletop gameplay by digitally tracking hit points, effects, and other game elements for "Sentinels of the Multiverse" and "Sentinels of Earth-Prime." It supports all expansions and allows for wireless multiplayer tracking on iOS devices.

**Highlights:** Track hero and villain hit points, Manage ongoing effects and modifiers, Supports all expansions and variant cards, Wireless multiplayer game tracking, Random game setup and difficulty ratings, In-app rules and errata lookup, Customizable hero and villain creation

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| High Resolution Art | $0.99 | one-time |
| Target Card Art | $0.99 | one-time |
| Wrath of the Cosmos Art | $0.99 | one-time |
| Villains of the Multiverse Art | $0.99 | one-time |
| OblivAeon Art | $0.99 | one-time |
| Vengeance Art & Nemesis Icons | $1.99 | one-time |

**What reviewers like**

- 🚀 Streamlines gameplay and eliminates tedious token management
- 📊 Excellent HP tracking for all characters and targets
- 🎲 Useful randomizer for game setup
- 🎨 Clean, polished interface with character artwork
- 📱 Works well on iPad for shared viewing at table

**What reviewers complain about**

- 💰 Expensive upfront cost with additional in-app purchases
- 🖼️ Requires paid DLC for character artwork
- 📱 Poor experience on phones due to small text
- 🔋 High battery drain during extended play
- 🎭 Limited functionality compared to free alternatives

**Reported bugs**

- App crashes when loading certain villains
- Cannot remove Oblivaeon expansion from randomizer settings
- Missing cards in environment deck
- Team version of Ambuscade nemesis cards not persisting
- Promo card duplicates not handled correctly with duplicate hero toggle

**Requested features**

- Landscape mode orientation
- Condition and effect tracking system
- Automatic buff/debuff application
- Victory celebration screen
- Background music option


### Arkham DeckbuildeR

[App page](https://appshunter.io/ios/app/arkham-deckbuilder/id6446255632)

Enhance your Arkham Horror: The Card Game experience with a comprehensive companion app. Access a vast database of cards, explore popular deck lists, and discover detailed investigator information. Plan your investigations with offline access to all resources.

**Highlights:** ArkhamDB database access, Popular deck list exploration, Investigator and card browsing, Advanced card search filters, Detailed card information, Offline database access

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

**In-app purchases:** none


## Frequently asked questions

### Is Sentinels Sidekick free?

Sentinels Sidekick costs $0.99, and also offers in-app purchases.

### Is Arkham DeckbuildeR free?

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

### Which has better reviews, Sentinels Sidekick or Arkham DeckbuildeR?

Arkham DeckbuildeR is rated higher. Sentinels Sidekick averages 4.6 out of 5 from 68 ratings, while Arkham DeckbuildeR averages 4.8 from 46 ratings.

### Do Sentinels Sidekick or Arkham DeckbuildeR have ads?

Neither Sentinels Sidekick nor Arkham DeckbuildeR shows ads.

### Which is updated more often, Sentinels Sidekick or Arkham DeckbuildeR?

Sentinels Sidekick ships an update every 2 months, and Arkham DeckbuildeR every 3 weeks. Most recently, Sentinels Sidekick was updated on September 25, 2026 and Arkham DeckbuildeR on September 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.*