Devos vs Crema
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Devos
Control your LightRanger series lights via Bluetooth. Adjust individual light sides, color, and brightness. Schedule auto-offs, activate emergency flash modes, and group multiple lights for synchronized control.
- Bluetooth light control
- Individual side control
- Color and brightness adjustment
- Group multiple lights
- Emergency flash mode
- Schedule auto-off
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- Light control over Bluetooth including individual control of all 4 sides, color, and brightness - Firmware updates - Group and control multiple lights at once - Emergency flash mode - Schedule auto-off - Supports the following Lights: - LightRanger 2000 with 3 colors - LightRanger 4000 with Boost Mode to 4000 lumens brightness - LightRanger Pro 10,000 with Boost Mode to 10,000 lumens brightness - LightRanger Pro 15,000 with Boost Mode to 15,000 lumens brightness
Crema
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Crema is an espresso journal that tells you what to try next. Pull a shot, tap once, and Crema turns your log into a clear next step: grind finer, pull longer, fix your puck prep, or keep it just as it is. A COACH, NOT A SPREADSHEET After every shot, the dial-in coach picks one change for the next one, based on how it tasted, how it ran, your basket, and your best shot so far. Sour and slow? Pull a longer ratio instead of choking the machine. Fast and bitter? That's channeling, so it says to fix the puck, not the grind. A STARTING POINT FOR EVERY NEW BAG Open a new bag and Crema suggests the first dose, ratio, time, and grind from your best shots on similar coffee: the same coffee, the same roaster, or the same roast. The brew timer starts right there. SEE YOUR DIAL-IN PATH Each bag's shots appear as a path toward the sweet spot: "sour → balanced, grind 18 → 16". Insights show when your beans taste best off roast (per roaster), what each shot costs, and how consistent your week was. Every claim says how many shots it's based on. BREW TIMER A big dial with haptic checkpoints, an optional tap every five seconds so you can time by feel, and a Live Activity on your Lock Screen and Dynamic Island. Enter the yield when you stop and the shot is logged. ON YOUR WRIST Run the brew timer on Apple Watch, with haptic checkpoints that keep going while your wrist is down. Set the yield with the Digital Crown, rate the shot, and it lands in your iPhone log. Watch-face complications show days off roast and maintenance that's due. SIRI, SHORTCUTS, AND WIDGETS "Tell Crema about my shot: 18 in, 40 out, 32 seconds, a bit bitter." "Repeat my last shot in Crema." "How should I dial in with Crema?" Home and Lock Screen widgets show the bean in your hopper, its days off roast, and maintenance that's due. Pull a shot from Control Center. EVERYTHING A BARISTA TRACKS Pre-infusion, basket, puck prep, water, drink type, sour-to-bitter and body scales, grinder zero point, freezer time that doesn't count toward rest, bag price, and finished bags. Backflush, descale, and burr-wear reminders are based on how much coffee actually went through your grinder. Presets for popular grinders and machines fill in the settings for you. SHARE, IMPORT, AND BACK UP Share any recipe with a friend as a link or QR code. Import your shots, beans, and grinders from a backup or a supported export file. Back everything up to one file, photos included, or export CSV for your spreadsheets. PRIVATE BY DESIGN No account. No sign-in. No analytics. No tracking. Your log syncs through your own private iCloud, or stays on this device. We run no servers and can't see your data. The coach runs on your device. FREE, WITH AN OPTIONAL TIP JAR Every feature is free. If Crema helps your mornings, you can leave a tip. It unlocks nothing and keeps Crema independent. iPhone, iPad, Apple Watch, and Apple silicon Mac. Localized in 11 languages.
Screenshots
Verdict
The clearest difference is update cadence: Crema at every 9 days against Devos's every 6 months. Devos's advantage is iOS requirement (15.0 vs 17.0). 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Devos ships an update every 6 months, Crema every 9 days. The most recent releases landed on October 13, 2026 and October 11, 2026 respectively.
| Parameter | Devos | Crema |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (65 ratings) — better | — |
| Positive reviews | 93.5% of reviews | — |
| Number of ratings | 65 — better | — |
| Update frequency | Every 6 months | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 31 MB | 30 MB |
| Age rating | 4+ | 12+ |
| Developer | Devos Outdoor | ZHIFAN LIANG |
Bugs and requests
Devos
Reported bugs
3 issues- Will not pair with iPhone 13 Pro Max
- Does not pair
- Disconnects if not used for 7-8 hours
Requested features
2 requests- Support for more than 4 lights (up to 8)
- Provision for a second row of lights up to 8
Crema
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Devos
No in-app purchases
Crema
No in-app purchases









