GemJoy vs Mill
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GemJoy
Experience a world where jewelry transforms into interactive augmented reality stories and mythical adventures. Hover your camera over special pieces to reveal magical creatures and engaging narratives, designed to spark wonder and delight users of all ages.
- Augmented reality magic
- Interactive fantasy stories
- Mythical creature animations
- Wearable storybook experience
- Precision marker tracking
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Feel Your GemJoy Come Alive Every GemJoy opens a world of wonder. Point the GemJoy app at your jewelry and watch extraordinary creatures, magical stories, and interactive experiences come to life. Dragons take flight, unicorns appear, and enchanting surprises unfold around your GemJoy. Magic You Can Play In Meet fantastical creatures, explore imaginative stories, and discover interactive experiences shaped by your actions. From mythical dragons and unicorns to extraordinary animals found in nature, GemJoy brings the wonders of the real and imaginary worlds together. Beautifully Designed. Ingeniously Engineered. Each GemJoy features a specially designed image that the app recognizes, bringing augmented reality experiences to life around your piece. Crafted from glass, metal, and pigment, GemJoy jewelry requires no batteries, wires, or electronic components. A Growing World of Wonder Discover new creatures, stories, games, and seasonal surprises as the GemJoy universe continues to grow. Designed to spark curiosity, inspire imagination, and create moments of joy worth sharing. Feel Your GemJoy Come Alive.
Mill
Manage your smart kitchen bin, schedule pickups, and access helpful guides on food waste. This app helps you control bin settings, customize schedules, and track returns for a more sustainable kitchen.
- Wi-Fi bin connection
- Bin settings control
- Dry & Grind schedule management
- Kid & Pet lock
- Food Grounds pickup scheduling
- Prepaid box ordering
- Waste guides and tips
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Meet the Mill app. Set up, manage and control your kitchen bin — all in one place. Setup and pairing – Connect your bin to Wi-Fi – Easily access and control bin settings Customize your bin – Manage your Dry & Grind schedule – Turn the Kid & Pet lock on or off – Give your bin a name of its own Schedule pickups – Schedule a Food Grounds™ pickup or find drop-off locations – Order more prepaid boxes – Track the status of Food Grounds returns Get helpful guides – See what’s ok (and not ok) to add to the bin – Get tips to keep your bin running at its best – Learn more about the impact of your Mill Membership™ The Mill app is designed to use with the Mill kitchen bin, all part of your Mill Membership™
Screenshots
Verdict
The clearest difference is rating: Mill at 4.2 against GemJoy's 2.0. Mill also leads on update cadence (monthly vs every 8 months) and ratings volume (95 vs 1). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Mill holds the better App Store score, 4.2 against 2.0. That said, the two scores are not equally well evidenced: Mill has 95 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 51% of GemJoy's written reviews are positive against 62% of Mill's.
GemJoy ships an update every 8 months, Mill monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | GemJoy | Mill |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) | 4.2 (95 ratings) — better |
| Positive reviews | 51.2% of reviews | 62.1% of reviews — better |
| Number of ratings | 1 | 95 — better |
| Update frequency | Every 8 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 660 MB | 156 MB |
| Age rating | 4+ | 4+ |
| Developer | Katie Vanderdrift | Mill Industries, LLC |
Customer experience
GemJoy
Mill
Bugs and requests
GemJoy
Reported bugs
8 issues- App doesn't always work
- Picture doesn't always appear
- App needs scanning function
- Phone camera not working
- Cannot scan new device
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- Gem not readable on new phone
- App crashes or freezes
- AR loses tracking easily
Requested features
7 requests- More content and experiences
- App improvements and fixes
- Better AR tracking/stability
- More interactive games
- Stories for all animals
Show 2 moreShow fewer
- Adjustable bracelet size
- More compatible with newer phones
Mill
Not enough reviews yet to summarise bugs or requests.
In-app purchases
GemJoy
No in-app purchases
Mill
No in-app purchases









