Calo vs Subscriptions Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calo
This free calculator app offers a clean interface with instant launch and a history feature to view past calculations. It includes customizable themes, keypress sounds, and real-time result display for a smooth user experience.
- Calculation history
- Segmented input method
- iPad split-screen support
- Customizable themes and sounds
- Real-time result display
- Undo and delete functions
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Calo is a free, ad-free calculator for everyday math and deeper exploration. A clean keypad keeps quick calculations simple; switch to scientific mode when you need more. Calculate with confidence • A native high-precision engine keeps up to 40 significant digits in results. • See results as you type. Move the cursor to edit or paste an expression, and use a hardware keyboard on iPad. • Explore powers, roots, logarithms, trigonometry, factorials and more. Switch between degrees and radians. • Tap a result to cycle through rounded, full-precision, fraction (when available) and scientific formats. Use memory keys for multi-step work. Keep your work close • Search your calculation history, add notes, reuse an earlier expression, or export results as CSV or a receipt-style image. • Save expressions you use often and insert them with a tap. • See recent results in Home Screen and Lock Screen widgets. Open Calo from Control Center, or calculate and retrieve your latest result with Siri and Shortcuts. Make it yours with light and dark themes, accent colors, sounds, Chinese voice pronunciation, adjustable decimal places and optional iCloud sync.
Subscriptions Tracker
Effortlessly manage all your recurring payments in one place. Get timely reminders before charges, track spending, and organize subscriptions by profile. Automate detection and setup for a clear overview of your financial commitments.
- Track subscription renewals
- Receive smart payment reminders
- Analyze monthly/yearly spending
- Organize with profiles
- Share subscription management
- Automatic subscription detection
- Quick setup with templates
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Never lose track of a subscription again. Subio is an all-in-one subscription manager that helps you track recurring payments, manage free trials, organise subscriptions, and understand your spending, all from one beautiful, privacy-first app. Whether you're managing streaming services, business software, mobile apps, cloud subscriptions, memberships, or shared family plans, Subio gives you complete visibility over what's renewing, what's due next, and where your money is going. No spreadsheets. No forgotten renewals. No surprise charges. Everything you need to stay in control. Track subscriptions Keep all your subscriptions in one place and always know what's renewing, when you'll be charged, and how much you're spending each month and year. Never miss a renewal Receive smart reminders before recurring payments, subscription renewals, bills, and free trial expirations so you stay ahead of every charge. Organise with Profiles Create separate Personal, Business, Family, or custom profiles to keep subscriptions organised exactly the way you want. Share with friends and family Invite others to shared profiles and manage household or team subscriptions together while keeping ownership and permissions clear. Automatically discover subscriptions Quickly find subscriptions from your emails and imported bank statements using on-device processing powered by Apple technologies. Your personal data stays private and is never shared with external services. Manage subscriptions your way Filter subscriptions by payment method, sort by billing cycle or upcoming renewals, search instantly, and customise your workspace for the way you manage your finances. Understand your spending View monthly and yearly subscription costs, monitor recurring payments, and identify subscriptions that may no longer be worth keeping. Quick setup Add subscriptions in seconds with ready-to-use templates, automatic icon suggestions, and an extensive icon library. Built for global users Track subscriptions in multiple currencies and manage services from around the world. Designed for clarity Subio is designed to help you focus on what matters. No clutter. No ads. No unnecessary complexity. Just a fast, intuitive experience built specifically for managing subscriptions with confidence. Built with privacy in mind. Your information belongs to you. Subscription discovery happens on your device using Apple technologies whenever possible and your device supports it. We're continuously improving Subio with new features, smarter subscription management tools, and regular performance improvements based on user feedback. Whether you're an individual, a family, a freelancer, or a business managing recurring software costs, Subio helps you stay organised, avoid unexpected charges, and take control of your subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Calo at none against Subscriptions Tracker's 3. Calo also leads on rating (4.7 vs 4.3) and update cadence (every 5 days vs every 3 weeks). Subscriptions Tracker's advantage is review sentiment (100% vs 92%). On price, ratings volume, ads 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. Subscriptions Tracker sells 3 in-app purchases, starting at $4.99 per month. Calo asks for nothing beyond the download.
Calo holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 18 and 8 respectively. Written reviews complicate that: 92% of Calo's written reviews are positive against 100% of Subscriptions Tracker's, so the app with the better star average is not the one people write more warmly about.
Calo ships an update every 5 days, Subscriptions Tracker every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.
| Parameter | Calo | Subscriptions Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (18 ratings) — better | 4.3 (8 ratings) |
| Positive reviews | 91.7% of reviews | 100.0% of reviews — better |
| Number of ratings | 18 — better | 8 |
| Update frequency | Every 5 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 10 MB | 34 MB |
| Age rating | 4+ | 4+ |
| Developer | Space-Time Transformation Technology Co., Ltd. | Unlock Futurix Ltd |
Customer experience
Calo
Subscriptions Tracker
In-app purchases
Calo
No in-app purchases
Subscriptions Tracker
- Monthly$4.991 Month
- premium$11.991 Year
- Subio Lifetime Access$17.99









