Shipfolio vs Sigma Notepad Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Shipfolio
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Shipfolio is a minimal project tracker built for indie and solo devs. Ship small, ship often, keep the momentum. One place for everything you're shipping. Track projects from first idea to live product. Capture tasks, feedback, and release notes without the overhead of heavyweight tools. CORE FEATURES - Projects with stages: Idea, Build, Ship, Grow, Maintain - Tasks in three buckets: Ongoing, Next, Later - Feedback inbox that converts to tasks in one tap - Build log for release notes, with markdown import - Dock for ideas and feedback you haven't triaged yet - Today view with your daily momentum and ship streak - Stats dashboard and per-project Journey timeline APPLE WATCH - Voice capture ideas and feedback to your Dock - Tap-to-complete ongoing tasks from your wrist - Four complication families for every watch face - Ship streak at a glance WIDGETS AND SHARE EXTENSION - Home screen widgets with task count and streak - Share from any app directly into Dock - Morning briefing notification SYNC - Web dashboard with the same data - Sign in with Apple, seamless across iPhone, Watch, and web - Offline first, syncs when you're back online PRO - Free: up to 3 projects, every feature - Pro: unlimited projects, $2.99/month or $29.99/year No Gantt charts, no sprints, no standups. Just the minimum viable surface between an idea and a shipped product. Built by an indie dev, for indie devs. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Sigma Notepad Calculator
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$610 left this month, before rent went out, and you never typed a sum. Sigma is a notepad that does the math while you write: every line shows its answer, and the total stays in view above the keyboard. Know what’s left before you spend it. Write "pay = $2400", then your bills, "rent: $1200" and "food: $380", and "left = pay - total" shows $820. Rent goes up? Change one number and everything below follows. Split the bill at the table. Dinner for four, tip included, comes to $51.75 each before anyone reaches for a card. Then send the whole note to the group chat as one image, every line and the total included. Know what the trip costs before you book. Flights in dollars, the hotel in euros, the train in Swiss francs: one total, all in, in your own currency. Rates stay live and keep working offline. Never add up the same list twice. Tick what’s paid and the total shows what’s still to pay. Give each part of a list a heading and each part gets its own total. Your totals, without opening a note. Ask Siri for your Groceries total in Sigma, keep a note’s total on your Home Screen with the free widget, and set a reminder on a date in your note. And all the everyday math around it. How many days until an invoice is due. Whether a 220 cm sofa fits an 8 ft wall. What you really saved at the sale. What a week of freelance work comes to. Percentages, units, dates and currencies, written the way you’d say them, with square roots, hex and trigonometry when you need them. Every line answers as you type. No formulas, no grid, and one rule to learn: a colon counts, an equals sign doesn’t. Free: three notes and the full calculator. No ads, no time limit. Sigma Pro keeps every month: unlimited notes, iCloud sync, export to PDF, Markdown and plain text, and five more themes. Sigma Pro is a single payment or monthly. Your notes stay on your iPhone, and iCloud sync uses your own private iCloud database, never our servers. Works in English and French. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://getsigma.app/privacy
Screenshots
Verdict
Shipfolio and Sigma Notepad Calculator are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Shipfolio sells 2 in-app purchases, starting at $2.99 per month and Sigma Notepad Calculator sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Shipfolio | Sigma Notepad Calculator |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, Apple Watch — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Christos Tzoannou | Soules Studio Ltd |
In-app purchases
Shipfolio
- Shipfolio Pro$2.991 Month
- Shipfolio Pro$29.991 Year
Sigma Notepad Calculator
- Monthly$1.991 Month
- Annual7 Days trial$14.991 Year
- Lifetime$29.99









