Comparison

Billie vs SubZero

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

Head to head
About

Billie

Features
Read full description

Billie — Subscription Tracker Never be surprised by a subscription charge again. Billie gives you a clear view of every subscription you pay for — streaming, music, apps, cloud storage, and more. Add them manually in seconds, and let Billie handle the rest. WHAT BILLIE DOES • See all your subscriptions in one place • Know exactly when each payment is due (D-day countdown) • Get notified 3 days and 1 day before each billing date • See your monthly total at a glance • Organize by category (Entertainment, Music, Cloud, and more) YOUR PRIVACY, YOUR DATA No account required. No cloud sync. Everything stays on your device — private by design. FREE FEATURES • Up to 5 subscriptions • Monthly total • Billing reminders (D-3, D-1) PREMIUM — ONE-TIME PURCHASE • Unlimited subscriptions • Category spending analysis (pie chart) Simple, fast, and private. Download Billie and take back control of your subscriptions.

About

SubZero

Features
Read full description

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

Billie4 screens
SubZero4 screens

Verdict

The call

The clearest difference is in-app purchases: SubZero at none against Billie's 1. Billie's advantage is ads (none vs shown) and iOS requirement (13.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Billie sells 1 one-off in-app purchase. SubZero asks for nothing beyond the download.

UpkeepUpdate frequency

Billie ships an update every 2 weeks, SubZero monthly. The most recent releases landed on September 9, 2026 and September 24, 2026 respectively.

Scorecard3 real differences Ā· 3 level
Billie versus SubZero: the parameters behind the verdict, then further details
ParameterBillieSubZero
PriceFreeFree
Update frequencyEvery 2 weeks — betterMonthly
AdsNo — betterYes
In-app purchasesYesNo — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size23 MB13 MB
Age rating4+4+
DeveloperYunseok Leeemirhan cifci

In-app purchases

1 purchases

Billie

One-time1
  • Billie Premium$9.99
None

SubZero

No in-app purchases

Questions

Is Billie free?
Billie is free to download, with in-app purchases available.
Is SubZero free?
SubZero is free to download, with no in-app purchases.
Do Billie or SubZero have ads?
SubZero shows ads; Billie does not.
Which is updated more often, Billie or SubZero?
Billie ships an update every 2 weeks, and SubZero monthly. Most recently, Billie was updated on September 9, 2026 and SubZero on September 24, 2026.

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