Comparison

Calclin vs Oaklet Notes

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full description

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.

About

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.

Highlights
  • 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
Features
Read full description

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

Calclin3 screens
Oaklet Notes4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Calclin versus Oaklet Notes: the parameters behind the verdict, then further details
ParameterCalclinOaklet Notes
PriceFreeFree
Rating2.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings11
Update frequencyEvery 2 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterFreemium
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS18.015.0 — better
Further details — not scored
Size9 MB102 MB
Age rating4+4+
DeveloperAzukid.comOceanoax LLC

Customer experience

Calclin

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Oaklet Notes

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Calclin

One-time2
  • Tips_1$0.99
  • Tips_5$4.99
2 purchases

Oaklet Notes

Subscriptions2
  • Pro Monthly$4.991 Month
  • Pro Annual$39.991 Year

Questions

Is Calclin free?
Calclin is free to download, with in-app purchases available.
Is Oaklet Notes free?
Oaklet Notes is free to download, with in-app purchases available.
Which has better reviews, Calclin or Oaklet Notes?
Oaklet Notes is rated higher. Calclin averages 2.0 out of 5 from 1 ratings, while Oaklet Notes averages 5.0 from 1 ratings.
Do Calclin or Oaklet Notes have ads?
Neither Calclin nor Oaklet Notes shows ads.
Which is updated more often, Calclin or Oaklet Notes?
Calclin ships an update every 2 months, and Oaklet Notes every 8 days. Most recently, Calclin was updated on October 15, 2026 and Oaklet Notes on October 17, 2026.

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