Comparison

Substory vs Billie

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

Head to head
About

Substory

Features
Read full description

Stop paying for subscriptions you forgot about. Substory is the simplest way to track every recurring charge in one place — Netflix, Spotify, iCloud, ChatGPT, your gym, your kid's learning app — and get reminded one day before each payment hits your card. No spreadsheets. No surprise charges. Just clarity. ā–  KEY FEATURES • All your subscriptions in one place See every recurring payment at a glance — streaming, software, memberships, utilities, anything. • Know exactly what you spend Substory calculates your total monthly cost and tells you how much is left to be charged this month. • Never miss a payment Get a push notification the day before each subscription renews, so nothing surprises you. • Smart sorting Sort by price, date, or payment method to find what you need fast. • Add anything in seconds Service name, price, billing date, payment method. That's it. Edit or delete whenever you want. • Clean, focused design No clutter, no complicated budgeting features — just subscription tracking done right. ā–  WHO IT'S FOR • Anyone shocked by their monthly card statement • People who can't remember everything they're subscribed to • Households juggling shared streaming, cloud, and SaaS plans • Anyone trying to cancel what they don't use and keep what they love • People who think traditional budgeting apps are overkill ā–  PRIVACY FIRST Your data is yours. Substory never sells your information. Subscription details are stored securely and encrypted. ā–  SUPPORT Found a bug or have a feature idea? Leave a review or email us — we read every message and ship updates based on real feedback. Download Substory today and take back control of your recurring spending.

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.

Screenshots

Substory3 screens
Billie4 screens

Verdict

The call

The clearest difference is in-app purchases: Substory at none against Billie's 1. Billie's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 4 months). On price 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. Substory asks for nothing beyond the download.

UpkeepUpdate frequency

Substory ships an update every 4 months, Billie every 2 weeks. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

Scorecard4 real differences Ā· 2 level
Substory versus Billie: the parameters behind the verdict, then further details
ParameterSubstoryBillie
PriceFreeFree
Update frequencyEvery 4 monthsEvery 2 weeks — better
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.113.0 — better
Further details — not scored
Size34 MB23 MB
Age rating4+4+
DeveloperBeomsu NaYunseok Lee

In-app purchases

None

Substory

No in-app purchases

1 purchases

Billie

One-time1
  • Billie Premium$9.99

Questions

Is Substory free?
Substory is free to download, with no in-app purchases.
Is Billie free?
Billie is free to download, with in-app purchases available.
Do Substory or Billie have ads?
Substory shows ads; Billie does not.
Which is updated more often, Substory or Billie?
Substory ships an update every 4 months, and Billie every 2 weeks. Most recently, Substory was updated on October 6, 2026 and Billie on October 11, 2026.

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