Billie vs SubZero
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Billie
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Billie โ Subscription Tracker Never be surprised by a subscription charge again. Billie gives you a clear view of every subscription you pay for โ streaming, music, apps, cloud storage, and more. Add them manually in seconds, and let Billie handle the rest. WHAT BILLIE DOES โข See all your subscriptions in one place โข Know exactly when each payment is due (D-day countdown) โข Get notified 3 days and 1 day before each billing date โข See your monthly total at a glance โข Organize by category (Entertainment, Music, Cloud, and more) YOUR PRIVACY, YOUR DATA No account required. No cloud sync. Everything stays on your device โ private by design. FREE FEATURES โข Up to 5 subscriptions โข Monthly total โข Billing reminders (D-3, D-1) PREMIUM โ ONE-TIME PURCHASE โข Unlimited subscriptions โข Category spending analysis (pie chart) Simple, fast, and private. Download Billie and take back control of your subscriptions.
SubZero
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Take control of every subscription you pay for, from streaming services to gym memberships.\n\nSubZero helps you see recurring costs clearly, track free trials and prepare for upcoming payments.\n\nSMART TRACKING\nAdd subscriptions and recurring payments in seconds\nSee monthly and yearly spending at a glance\nGroup costs by category\nSet a monthly budget and receive an alert when you go over it\n\nTRIALS AND REMINDERS\nTrack free-trial end dates\nReceive reminders before a trial or payment date\nReview active and paused subscriptions in one place\n\nANALYTICS\nView spending trends and category breakdowns\nFind your most expensive subscriptions\nCompare costs in your preferred currency\n\nPRIVACY AND SECURITY\nProtect the app with Face ID or Touch ID\nDelete your account and associated cloud data from Settings\n\nSubZero is free to download. Premium features require an auto-renewable subscription. Choose monthly or yearly Premium in the app. Payment is charged to your Apple Account at confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. You can manage or cancel them in your Apple Account subscription settings.\n\nTerms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/\nPrivacy Policy: https://emircifci.github.io/subzero/privacy.html
Screenshots
Verdict
The clearest difference is ads: Billie at none against SubZero's shown. Billie also leads on iOS requirement (13.0 vs 17.0). On price, update cadence, in-app purchases and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Billie sells 1 one-off in-app purchase and SubZero sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
Billie ships an update every 2 weeks, SubZero monthly. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.
| Parameter | Billie | SubZero |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 weeks โ better | Monthly |
| Ads | No โ better | Yes |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 โ better | 17.0 |
| Further details โ not scored | ||
| Size | 23 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | Yunseok Lee | emirhan cifci |
In-app purchases
Billie
- Billie Premium$9.99
SubZero
- SubZero Pro Monthly$4.991 Month
- SubZero Pro Yearly$39.991 Year









