Calclin vs Oaklet Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calclin
This calculator app provides a paper-roll style history for easy review of calculations. It supports formula input, notes for results, and multiple calculation frames to organize different tasks. Users can customize display modes and appearance.
- Paper-roll style calculation history
- Multiple calculation frames
- Formula input with parentheses and functions
- Notes for calculation results
- PDF export
- Customizable digit grouping, separators, and rounding
- Auto, Light, and Dark appearance modes
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A calculator memo app with history that keeps your calculation process visible like a paper roll. Switch between calculator input and formula input to handle everything from everyday math to calculations you want to keep as records. ■ Calculator mode and Formula mode Calculator mode evaluates left to right (5+5×2=20). Formula mode respects operator precedence (5+5×2=15) and supports parentheses and roots. Switch anytime from the input row, changing the calculation style without leaving the active input area. ■ Paper-roll style history Expressions and answers stay on the roll from the top, so you can see the flow of your calculation at a glance. Subtle side lines and top shading keep each frame easy to distinguish, even with multiple rolls. In calculator mode, a running total can be shown while you type. ■ Edit rows and add notes In calculator mode, tap any roll row to edit and recalculate. Add a note to any history entry. Swipe left to delete; swipe right to add a memo, copy the expression, or copy the answer. ■ PDF export Export a calculation roll as a PDF whenever you want to keep it. ■ Use multiple calculators side by side Up to a triple deck. Add or remove panels with the [+][−] header buttons, swipe or tap to switch, and double-tap to toggle between 1-panel and 2-panel views. ■ Unit-aware calculations Calculate with units of length, area, volume, and weight. Press a different unit key to change only the unit, or press the same unit key again to convert the number. Tap an underlined unit to pick from the conversion list. ■ TAX+ and TAX− keys Add tax to, or remove tax from, the value you are entering or the answer you just calculated. Set up to three tax rates; each key shows its rate. ■ Customizable keyboard Long-press any key to define it, and merge keys vertically or horizontally to create larger keys. Switch between 5 layouts (30 keys each), and export or import your arrangement. ■ Flexible display settings Choose the decimal point and grouping symbols, the grouping style (every 3 or 4 digits, Indian style), the number of decimal digits, and the rounding mode (including round half to even). Answers are kept at full precision; rounded answers are marked with "≒", and tapping one shows every digit. Pick Auto, Light, or Dark appearance, and enlarge or reduce text size. Your settings are restored on next launch. ■ Beginner and Expert modes Beginner mode shows labels and tips for each button. Once you are comfortable, Expert mode unlocks advanced operations such as long-press key editing. The calculation engine uses C/C++ fixed-point decimal, stored internally in BCD arrays. Note: Data is not encrypted. Please do not store personal or confidential information.
Oaklet Notes
This app combines writing, drawing, and structured knowledge in a secure, encrypted vault on your device. Create rich text notes, sketch with Apple Pencil, build mind maps, and organize information with AI assistance, all while keeping your data private and offline.
- Encrypted note vault
- Rich text and Markdown editor
- Apple Pencil drawing and SVG export
- Whiteboard for mind maps
- Tables with formulas and diagrams
- Optional local AI integration
- WikiLinks and knowledge graph
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Oaklet Notes brings writing, whiteboards, drawing, and structured knowledge together in a single note — kept in an encrypted vault that stays on your device. Write, sketch with Apple Pencil, build mind maps, and handle tables, math, and diagrams — then link everything into your own knowledge graph. It's truly yours: offline-first, encrypted on your own device, with no account to create. TRULY PRIVATE • AES-256-GCM encryption protects every note • Vault password, plus an optional Note Password for sensitive notes • Unlock with Face ID or Touch ID (Pro) • Auto-lock when you step away • Works fully offline — no account to create, and your notes never pass through our servers MULTI-MODAL — EVERY MODE, ONE NOTE • A block-based rich-text editor • Drawing with native Apple Pencil — pressure-sensitive, low-latency, layers, fill, and SVG export • Whiteboard for mind maps and flowcharts, with one-click auto layouts • Tables with formulas, LaTeX math, Mermaid diagrams, code blocks, task lists • Decorations — stickers, sticky notes, tape, and stamps, pinned to your text or floating free PRIVATE AI, ON YOUR TERMS • Connect a local AI model on your own network — no API key, no third-party cloud • Or use your own cloud AI provider • Drafting and rewriting, semantic search, auto-tagging, whiteboard generation, and plain-language tool calling • AI is optional — the app connects to your provider rather than hosting one ORGANIZE & CONNECT • [[WikiLinks]] and ![[embeds]] build your knowledge network • Backlinks panel and an interactive knowledge graph • Hierarchical tags and full-text search SYNC & SHARE ACROSS YOUR OWN DEVICES • Direct Share — send a note straight to a nearby iPhone, iPad, Mac, or PC. Pair once with a code; transfers are encrypted end to end and go straight from one device to the other • Local Sync (Pro) — turn one of your own computers into the sync hub for all your devices. It only ever holds encrypted files, never your password • Prefer your own WebDAV server? Sync through that instead — or keep everything on this device NO LOCK-IN • Notes on your own disk, not a vendor's database • Import and export Markdown anytime; export to PDF, HTML, and Word • Move notes between devices and vaults as .yzn packages, without losing anything Oaklet Notes is free to use. An optional Pro subscription unlocks advanced features — try it free for 30 days in the app. Subscriptions are billed through your Apple ID and can be managed in Settings. Privacy Policy: https://oakletnotes.com/en/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Oaklet Notes at 100% against Calclin's 50%. Oaklet Notes also leads on rating (5.0 vs 2.0) and update cadence (every 8 days vs every 2 months). Calclin's advantage is monetization model (free vs freemium). On price, ratings volume, ads and in-app purchases 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. Calclin sells 2 one-off in-app purchases and Oaklet Notes sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Oaklet Notes holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews point the same way: 50% of Calclin's written reviews are positive against 100% of Oaklet Notes's.
Calclin ships an update every 2 months, Oaklet Notes every 8 days. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.
| Parameter | Calclin | Oaklet Notes |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 1 |
| Update frequency | Every 2 months | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 9 MB | 102 MB |
| Age rating | 4+ | 4+ |
| Developer | Azukid.com | Oceanoax LLC |
Customer experience
Calclin
Oaklet Notes
In-app purchases
Calclin
- Tips_1$0.99
- Tips_5$4.99
Oaklet Notes
- Pro Monthly$4.991 Month
- Pro Annual$39.991 Year








