OS Inventory vs Tally Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OS Inventory
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OS Inventory is a powerful inventory solution that is simple, flexible, and can suit different operation models. Leveraging Openscreen’s dynamic QR codes, you will be able to track and manage your stock with just a few clicks. OS Inventory solution allows you to use both web and mobile applications to complete your tasks.
Tally Notes
This spreadsheet app simplifies total calculations for various needs, from shopping lists to inventory management. It offers unlimited folders, notes, and items, with features like unit pricing, tax settings, and CSV export. Enjoy a completely free experience with dark mode and home screen widgets.
- Unlimited folders, notes, and items
- Unit price, quantity, and tax settings
- Automatic total calculation
- CSV output and sharing
- Batch operations and filtering
- Home and lock screen widgets
- Dark mode
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It's a tally notes (spreadsheet) app. Easily calculate totals. All features are completely free to use. - Unlimited adding folders/notes/items - Unit price/quantity/consumption tax settings - Automatically calculate totals / shopping calculations and inventory management - CSV output / save file / share to SNS - Batch operations such as copy/duplicate/color coding - Filter/Sort/Bulk delete - Easy input from history - Free Word Search - Home/lock screen widget - Dark mode URL scheme: tallynotes://
Screenshots
Verdict
The clearest difference is ads: OS Inventory at none against Tally Notes's shown. OS Inventory also leads on iOS requirement (16.0 vs 26.0). Tally Notes's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, 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.
OS Inventory ships an update every 5 weeks, Tally Notes every 2 weeks. The most recent releases landed on November 7, 2026 and November 12, 2026 respectively.
| Parameter | OS Inventory | Tally Notes |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.6 (7 ratings) — better |
| Positive reviews | — | 77.8% of reviews |
| Number of ratings | — | 7 — better |
| Update frequency | Every 5 weeks | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | — | Ad-supported |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 2 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | OPENSCREEN INC. | FugaPiyo Inc. |
In-app purchases
OS Inventory
No in-app purchases
Tally Notes
No in-app purchases
