Comparison

Duly vs Zento

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

Head to head
About

Duly

Track all your recurring expenses, from subscriptions to rent, in one place. Get timely reminders before payments are due and mark them as paid directly from notifications. Visualize your spending with built-in analytics and custom categories.

Highlights
  • Recurring expense tracking
  • Payment reminders
  • Mark as paid from notification
  • Spending analytics
  • Custom categories
  • Cross-device sync
Features
Read full description

Know what's due next. Duly keeps your subscriptions and bills in one list and reminds you before each one is due. You add what you pay for yourself, so there is no bank to connect and no account to create. Track 6 expenses free, and one purchase unlocks unlimited. Netflix, rent, insurance, gym, cloud storage: more than you think, on repeat. Each one feels small. The total rarely does. Duly puts every recurring payment in one place and nudges you before each one hits. Add an expense, pick how often it repeats (weekly, monthly, yearly, or any custom interval), and get a reminder before it's due. Mark it as paid right from the notification, no need to even open the app. The home screen shows what's coming up and how much you're spending this month. Widgets bring the same view to your home and lock screen. Built-in charts break down your recurring payments by category and project totals months ahead. Works with any currency, amounts auto-convert to your base currency. Organize with custom categories. Add expenses through Siri. Syncs across your Apple devices via iCloud. Available in 21 languages. That's it. No bank linking, no account sign-ups, no ads. Just your recurring payments, where you can actually see them. Free for up to 6 expenses. A single purchase removes the limit. No subscription required to track your subscriptions. Your expenses live on your device and in your own iCloud. Duly has no account and no server of its own holding them. The only thing that ever leaves your phone is feedback, and only if you choose to write it.

About

Zento

Features
Read full description

Zento brings subscriptions and recurring bills into one clear view. Add popular services or create a custom expense, see upcoming renewals, understand monthly spending, and share receipts with a group. Shared bills show who has paid and who is still pending, so everyone stays aligned. KEEP EVERY PAYMENT IN VIEW • Track subscriptions and recurring expenses in one place. • See monthly and yearly totals at a glance. • Use the calendar to anticipate upcoming charges. • Create custom expenses with your own icon and colour. SHARE COSTS WITHOUT THE CHASE • Create a group and share recurring expenses. • Keep organised receipts for every shared payment. • See who has paid and who is still pending. REMINDERS THAT FIT YOUR PLAN Zento Free includes up to 10 subscriptions, one group and a basic reminder one day before each renewal. Zento Pro unlocks unlimited subscriptions and groups, flexible reminder timing, weekly summaries, advanced statistics and premium widgets. Your data stays private and synchronises securely through your Apple account where supported. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://zento.krzapps.com/privacy/

Screenshots

Duly4 screens
Zento4 screens

Verdict

The call

The clearest difference is update cadence: Duly at weekly against Zento's every 3 weeks. On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Duly sells 5 one-off in-app purchases and Zento sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Duly ships an update weekly, Zento every 3 weeks. Both last shipped on October 14, 2026.

Scorecard1 real difference · 9 level
Duly versus Zento: the parameters behind the verdict, then further details
ParameterDulyZento
PriceFreeFree
Rating4.2 (5 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings5 — better—
Update frequencyWeekly — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.018.0
Further details — not scored
Size6 MB88 MB
Age rating4+4+
DeveloperStepan ManzurovIsmael Martinez

In-app purchases

5 purchases

Duly

One-time5
  • Copper Coin$1.99
  • Duly Unlimited$4.99
  • Silver Coin$4.99
Show 2 more
  • Gold Coin$9.99
  • Platinum Coin$19.99
2 purchases

Zento

Subscriptions2
  • Zento Pro Monthly$4.991 Month
  • Zento Pro Yearly$29.991 Year

Questions

Is Duly free?
Duly is free to download, with in-app purchases available.
Is Zento free?
Zento is free to download, with in-app purchases available.
Do Duly or Zento have ads?
Neither Duly nor Zento shows ads.
Which is updated more often, Duly or Zento?
Duly ships an update weekly, and Zento every 3 weeks. Most recently, Duly was updated on October 14, 2026 and Zento on October 14, 2026.

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