CalMemo Stadio vs BindNotes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CalMemo Stadio
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【Calculate. Remember. Reuse. CalMemo does it all.】 "I wish I could redo that calculation." "Typing the same formula over and over is tedious." "I want to save my calculations with notes." CalMemo solves all of these problems. ---------------------------------------- ▼ What CalMemo Can Do ---------------------------------------- 【Auto-Save Calculation History】 Every calculation is automatically saved. Revisit past results, copy values, and continue where you left off. 【Formula Studio – Create Your Own Formulas】 Save your frequently used formulas and recall them with a single tap. Tax calculations, discounts, BMI, loan interest... build your own personalized calculator. 【Equation Solver】 Need to find the value of x? Just enter your equation and let CalMemo solve it. From linear equations to systems of equations, get instant answers. 【Structural Lab - Structural Calculation for Architecture & Civil Engineering】 Supports structural analysis of beams (horizontal) and columns (vertical). Considers not only concentrated and distributed loads but also the self-weight of members to instantly calculate and graph bending moments, shear forces, deflection, and more. Strongly supports everything from quick on-site checks to learning. 【Notes + Calculator in One】 Insert calculation results directly into your notes. Perfect for estimates, budgets, travel expense splits, and more. 【Unit & Currency Converter】 Convert length, weight, temperature, and currencies in real-time. Essential for international shopping and travel. 【Home Screen Widget】 Calculate without even opening the app. The fastest way to crunch numbers. ---------------------------------------- ▼ Perfect For ---------------------------------------- ・Anyone who wants to save calculation history ・Users who repeat the same calculations often ・Students and professionals solving equations ・People tired of switching between notes and calculator ・Anyone who wants instant calculations from Home Screen ---------------------------------------- ▼ CalMemo Premium ---------------------------------------- Unlock the full experience: ・Ad-free for distraction-free calculating ・Full access to Formula Studio & Equation Solver ・Calculator Widget for Home Screen ・Expanded keyboard customization slots ---------------------------------------- Calculating isn't just a task. With CalMemo, make it smarter. Make it yours. Download now and experience a new way to calculate. ---------------------------------------- Terms of Use: https://www.notion.so/Terms-of-Use-End-User-License-Agreement-2f45c1eb92a480069955e6d1b3adeb53?source=copy_link
BindNotes
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Your notes. Linked. Notes shouldn't be limited by the size of a page. But linear pages and infinite canvas aren't the answer — you just get lost. BindNotes takes a different approach: go infinitely deep, not infinitely long. Lasso any handwriting with Apple Pencil, link it to another page, and tap to jump. Pages give you focus. Links give you depth. Your notes become a connected network of ideas — not a stack of dead-end pages. BindNotes is a notebook app built for Apple Pencil. Write, sketch, and draw like any notebook — then connect your pages. Headers & Outline Assign header levels (H1–H5) to any page. Headers build a navigable outline for your notebook — tap to see the full structure, drill into sections, jump to any page. Color-coded by level so you can see hierarchy at a glance. Links let you follow a thought. Headers let you see the shape of your notebook. Together, they turn a stack of pages into a system. Page Overview See every page connection in your notebook as a visual graph. Arrows show which pages link where. Spot structure, find orphaned pages, navigate by tapping. PDF Annotation (Pro) Import any PDF into a notebook. Annotate with pen, highlighter, and lasso. The highlighter lifts actual pixels from the PDF — highlighted content becomes a visual element you can work with. Add headers to organize the PDF. Create links between pages. Turn a static document into something navigable. PDF Export (Pro) Export your notebook as a PDF. Links become clickable cross-references. An outline page is auto-generated. Your handwritten notebook exports like a professional document. Sync with iCloud Drive Notebooks sync across iPhone, iPad, and Mac via iCloud Drive. No account. No server. You control where your data lives. Free — No Limits on Note-Taking Everything you need to write, draw, and link is free: • Unlimited notebooks and pages • All drawing tools — pen, highlighter, eraser, lasso • Page-to-page linking • Headers and outline navigation • Page overview (link graph) • iCloud Drive sync • 5 page templates (blank, ruled, graph, dots) BindNotes Pro — One-Time Purchase Unlock tools for serious workflows. No subscription. Buy once, own forever. • PDF import and annotation • PDF export with clickable links and bookmarks • Tags for notebook organization • Dark page templates • Full link and header color palettes Your notes stay on your device. We collect no data. No analytics. No tracking. No server. Your notebooks are stored locally or in your iCloud Drive — nowhere else. See our privacy policy at bindnotes.com/privacy.
Screenshots
Verdict
The clearest difference is ads: BindNotes at none against CalMemo Stadio's shown. BindNotes also leads on update cadence (weekly vs every 6 weeks). CalMemo Stadio's advantage is iOS requirement (16.6 vs 26.0). 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. CalMemo Stadio sells 2 in-app purchases, starting at $2.99 per month and BindNotes sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
CalMemo Stadio ships an update every 6 weeks, BindNotes weekly. The most recent releases landed on September 17, 2026 and September 12, 2026 respectively.
| Parameter | CalMemo Stadio | BindNotes |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 115 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Udagagwa Rie | Evgenii Eremeev |
In-app purchases
CalMemo Stadio
- CalMemo Premium (Monthly)1 Month trial$2.991 Month
- CalMemo Premium (Yearly)1 Month trial$14.991 Year
BindNotes
- BindNotes Pro$2.99









