Comparison

OneCast vs Gemma's Gems

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

OneCast

Transform your iPhone or iPad into an Xbox companion. Stream games from your console or the cloud, anywhere. Enjoy high-fidelity visuals and full controller support for an immersive gaming experience on the go.

Highlights
  • Stream Xbox games from console or cloud
  • Near-zero latency streaming
  • Up to 1440p resolution
  • Full Xbox controller support
  • Keyboard and mouse support
  • Xbox Party Chat
  • Picture-in-Picture mode
Features
Read full description

Transform your iPhone or iPad into the ultimate Xbox companion with OneCast. Whether the TV is unavailable, you're craving the comfort of another room, or you're away from home – OneCast puts your gaming session at your fingertips. Note: OneCast is an independent app designed for use with Xbox systems, but it is not affiliated with, endorsed by, or sponsored by Microsoft Corporation or the Xbox brand. Any queries or requests for support or technical assistance should be directed solely to the OneCast development team, as Microsoft is not involved in or responsible for this application. YOUR GAMES, EVERYWHERE • Stream directly from your personal Xbox console with near-zero latency in up to 1440p • Play Xbox games from the cloud, no console required • Access your Xbox library from anywhere – at home or on the go STUNNING VISUAL FIDELITY • Special High Quality video mode delivers exceptionally crisp and detailed visuals • Adjustable resolution settings to optimize performance for any network condition • Full-screen display option eliminates black bars for maximum immersion ULTIMATE CONTROL • Full support for Xbox controllers via Bluetooth or USB-C, with optimized experience for form-fitting controllers like Backbone and GameSir • Advanced keyboard and mouse support with Native Passthrough for games with built-in K&M support and Virtual Controller mode for precision aiming in any game (including proper mouse pointer lock on iPad) • Fully customizable on-screen controller with adjustable layout, opacity, and size FULL-FEATURED GAMEPLAY • Xbox Party Chat with sophisticated echo cancellation technology • Play Xbox 360 classics on your iOS devices • Enjoy local co-op gaming with multiple controllers on a single device • External display support for big-screen gaming anywhere using standard adapters (e.g. USB-C to HDMI or Lightning to HDMI) SEAMLESS MULTITASKING • Picture-in-Picture mode keeps your game visible while you use other apps • Quickly switch between your game and guides, messages, or social media Compatible with Xbox Series X|S and Xbox One consoles. Note: For optimal performance, connect your Xbox via ethernet cable and use a 5GHz WiFi connection for your iOS device. Free 7-day trial, then unlock unlimited access with a one-time purchase.

About

Gemma's Gems

Features
Read full description

Gemma’s Gems is a charming woodland puzzle adventure about quick thinking, careful routes and one determined little owl. Guide Ollie across Harry’s intricate webs, collect sparkling gems and escape before the Harry the spider can close in. Every level challenges you to read the web, choose a safe path and react quickly when the chase begins. Features: • A story-led adventure with illustrated introductions • Hand-crafted web puzzles that become more challenging as you progress • Four ways to play: Story, Classic, Limited Flights and Hazel (Harrys love) • Simple swipe, remote, mouse and keyboard controls • Game Center leaderboards and achievements • Original woodland characters, animation, music and sound • Optional purchases to remove interstitial adverts and unlock additional game modes • Play on iPhone, iPad, Apple TV, and Mac Can you collect every gem without becoming spider food?

Screenshots

OneCast4 screens
Gemma's Gems4 screens

Verdict

The call

The clearest difference is update cadence: Gemma's Gems at every 3 days against OneCast's monthly. OneCast's advantage is iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. OneCast sells 2 one-off in-app purchases and Gemma's Gems sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

OneCast ships an update monthly, Gemma's Gems every 3 days. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 8 level
OneCast versus Gemma's Gems: the parameters behind the verdict, then further details
ParameterOneCastGemma's Gems
PriceFreeFree
Rating4.5 (10K ratings) — better—
Positive reviews61.4% of reviews—
Number of ratings10K — better—
Update frequencyMonthlyEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple TV — betteriPhone, iPad
Requires iOS16.0 — better26.0
Further details — not scored
Size15 MB156 MB
Age rating4+4+
DeveloperBitwise Solutions LimitedDavid Hopkinson

Bugs and requests

OneCast

Reported bugs

3 issues
  • Fails to connect to Xbox in some cases
  • Audio/video desync issues
  • Compatibility problems with certain games

Requested features

5 requests
  • Support for Xbox Series X/S
  • Ability to stream over cellular data
  • Option to customize on-screen controls
  • Integration with Xbox Cloud Gaming
  • Support for multiple Xbox consoles on one account

Gemma's Gems

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

OneCast

One-time2
  • Additional Support$9.99
  • Full Unlock$14.99
2 purchases

Gemma's Gems

One-time2
  • Remove Ads$2.99
  • Game Modes$2.99

Questions

Is OneCast free?
OneCast is free to download, with in-app purchases available.
Is Gemma's Gems free?
Gemma's Gems is free to download, with in-app purchases available.
Do OneCast or Gemma's Gems have ads?
Neither OneCast nor Gemma's Gems shows ads.
Which is updated more often, OneCast or Gemma's Gems?
OneCast ships an update monthly, and Gemma's Gems every 3 days. Most recently, OneCast was updated on October 25, 2026 and Gemma's Gems on October 24, 2026.

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