Rainbowy vs StudioTimer
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rainbowy
A minimalist drawing application for all ages, featuring a simple interface and classical music for a relaxing creative experience. Users can draw on photos and save their colorful creations with or without the background.
- Minimalist drawing interface
- Classical music relaxation
- Draw on photos
- Save drawings with/without background
- Shake to save functionality
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This is a very simple but fascinating drawing app, suitable for kids and grown ups of all ages. Enjoy the revolutionary, ultrasimple minimalistic interface and relax with quality classical music while you create colorful rainbow drawings. When you are finished, simply shake the device and your work is saved. Rainbowy also lets you draw on photos and save your results with or without the background. It is so easy and entertaining to make colorful sketches with this app.
StudioTimer
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StudioTimer is a workflow companion for studios, small service teams, independent creators, and freelancers. It brings appointment scheduling, service timing, client records, order checkout, receipt export, and business insights into one focused app. SESSION TIMING Enter the client, project, and service type, then start the clock. Pause, resume, and finish with clear controls. On iPhone, Live Activities can keep the active timer visible at a glance. BOOKING AND SCHEDULE Create and edit appointments with start and end times, client details, project type, and notes. Today's schedule stays visible on the dashboard. CLIENTS AND PREPAID BALANCES Keep contact details, VIP status, default discounts, and notes together. Track top-ups, deductions, refunds, and adjustments, with a clear transaction history for each client. CHECKOUT, RECEIPTS, AND EXPORTS Calculate base fees from session duration and your default rates. Add extra charges, discounts, or prepaid balance deductions. Generate shareable PDF or image receipts and export order or client transaction data. ANALYTICS Review revenue, service time, trends, and project distribution. Filter records by date range to understand how the studio is performing. ICLOUD SYNC Use iCloud to keep appointments, clients, orders, and settings in sync across supported Apple devices, with a continuous workflow across iPhone, iPad, and Mac. Basic session timing is available for free. Scheduling, receipts, exports, advanced analytics, branding, and advanced history tools require StudioTimer Pro. Feature availability and sync depend on device, system version, and iCloud status. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: StudioTimer at Free against Rainbowy's $0.99. Rainbowy's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 17.6). On update cadence, ads 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
StudioTimer is free to download; Rainbowy costs $0.99 up front. StudioTimer sells 2 in-app purchases, starting at $0.99 per month. Rainbowy asks for nothing beyond the download.
Rainbowy ships an update every 6 days, StudioTimer every 9 days. The most recent releases landed on September 21, 2026 and September 15, 2026 respectively.
| Parameter | Rainbowy | StudioTimer |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.9 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 6 days — better | Every 9 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 38 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Martin Koppenhoefer | 聪 毕 |
In-app purchases
Rainbowy
No in-app purchases
StudioTimer
- StudioTimer Pro Monthly7 Days trial$0.991 Month
- StudioTimer Pro$9.99









