Do Homework vs Plain CALENDAR_
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Do Homework
Edit PDFs and images directly, saving changes to new files without altering originals. Merge documents, work with cloud storage, and use a scratchpad for notes. Share files and chat with friends.
- Edit PDFs and images directly
- Save edits to new files
- Merge PDFs and images
- Work with Google Drive
- Cloud file sharing
- Scratchpad for notes
- Draw lines and circles
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Do homework on PDF and images directly 1. Save to separate file, without changing original, continuously editable. 2. Merge to new PDF or images. 3. Work on Google Drive directly. 4. Http transfer files to local. 5. Scratch papper. 6. Local folder structure. 7. Draw line and circle. 8. Cloud share files. 9. Chat with friends.
Plain CALENDAR_
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Plan and organize your days with Plain Calendar! Easily add events with titles, set alarms to get timely notifications, and stay on top of your schedule. Our intuitive interface makes managing your events a breeze. Perfect for daily planning and event reminders. Download now and never miss an important moment!
Screenshots
Verdict
The clearest difference is in-app purchases: Plain CALENDAR_ at none against Do Homework's 1. Plain CALENDAR_ also leads on update cadence (every 2 days vs fortnightly). Do Homework's advantage is device support (3 vs 1) and iOS requirement (11.0 vs 16.0). On price and ads 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. Do Homework sells 1 one-off in-app purchase. Plain CALENDAR_ asks for nothing beyond the download.
Do Homework ships an update fortnightly, Plain CALENDAR_ every 2 days. The most recent releases landed on October 5, 2026 and October 2, 2026 respectively.
| Parameter | Do Homework | Plain CALENDAR_ |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Fortnightly | Every 2 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 11.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 96 MB | 107 MB |
| Age rating | 4+ | 4+ |
| Developer | Heavenbrook Software Inc. | Hyobeom Han |
In-app purchases
Do Homework
- Do homework upgrade$1.99
Plain CALENDAR_
No in-app purchases
