Comparison

Kelo vs Zerosum

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

Head to head
About

Kelo

Manage your recurring payments and expenses with a privacy-focused tracker. Visualize upcoming bills and subscriptions on a calendar, receive timely reminders, and gain insights into your spending habits to avoid forgotten renewals and surprise charges.

Highlights
  • Calendar view for bills and renewals
  • Renewal notifications
  • Track subscriptions and expenses
  • Templates for popular services
  • Multi-currency support
  • Spending insights and cash-flow overview
  • Private, on-device data storage
Features
Read full description

Know what leaves your account this month, before it leaves. Kelo tracks your subscriptions, bills and everyday expenses in one place, and warns you before every charge. No bank login, ever. Start free: log your first recurring expenses and as many one time expenses as you want, without paying and without connecting your bank. WHAT KELO DOES • Monthly and yearly summary: how much leaves your account, and when • Billing cycles that match real life: weekly, monthly, quarterly or any custom interval • Upcoming payments organized by category • A dashboard with four charts and your key figures at a glance • Unlimited one time expenses: coffee, groceries, fuel, anything • Widget showing how your spending is going, month by month • 10 languages and all major currencies AUTOMATIC, IF YOU WANT IT (Premium) • Pay with Apple Pay and Kelo logs the expense by itself, even with the app closed • Turn receipts and invoices into expenses with your camera • Add an expense in one tap with Shortcuts PREMIUM ALSO UNLOCKS • Unlimited recurring expenses • Alerts before every renewal, with configurable lead time • Full payment calendar, day by day • Budgets by category and savings goals • Sync and backup YOUR PRIVACY FIRST No bank connection. You choose what to add. Sync and backup are optional. Download Kelo and always know what money is committed before you spend. Subscription details: Kelo Premium is an auto-renewable subscription, available as a monthly or annual plan. The price is shown in the app before you confirm. Payment is charged to your Apple Account at purchase. The subscription renews automatically unless you cancel at least 24 hours before the end of the current period, and your account is charged within 24 hours before the period ends. You can manage or cancel anytime in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://juicestudio.notion.site/Legal-1d20ce62bcb5805ca800e676ef7aa8ed

About

Zerosum

This app helps you meticulously plan your finances by allocating every dollar before you spend it. It offers tools to set and track savings goals, analyze spending patterns, and manage recurring transactions. You can choose to sync with your bank accounts or manage your budget manually, and even share it with family.

Highlights
  • Zero-based budgeting
  • Savings goal tracking
  • Spending analytics
  • Recurring transaction management
  • Bank sync or manual entry
  • Family budget sharing
Features
Read full description

Zerosum is zero-based budgeting that actually makes sense. Plan every dollar before you spend it, hit your savings goals, and always know exactly where your money is going. PLAN EVERY DOLLAR Start each month by planning where every dollar goes, so your spending matches your priorities before the money is gone. SAVINGS GOALS THAT FIT REAL LIFE Save on a schedule, refill monthly categories, save by a date, or track open-ended balances. Simple goals for how people actually budget. ANALYTICS AND FORECASTS Net worth, spending by category, cash flow, income trends, and financial forecasts. Twelve reports that help you make better decisions. RECURRING TRANSACTIONS Set bills, subscriptions, and paychecks once with flexible scheduling: daily, weekly, monthly, yearly, or any custom interval. Never enter the same transaction twice. BANK SYNC OR FULLY MANUAL Connect your accounts for automatic imports, or go fully manual. Your workflow, your choice. SHARE WITH FAMILY Share a budget with your partner or family so everyone stays on the same page. Your money, organized. Start with a free 1 month trial. SUBSCRIPTIONS Zerosum offers Basic, Plus and Pro plans, each available monthly or annually. Prices are shown in the app before purchase. Payment is charged to your Apple Account at confirmation of purchase, and your subscription renews automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Terms of Use: https://zerosum.so/terms Privacy Policy: https://zerosum.so/privacy

Screenshots

Kelo4 screens
Zerosum4 screens

Verdict

The call

Kelo and Zerosum both sit at 5.0 stars, but that hides the real split: 100% of Kelo's written reviews are positive against 92% of Zerosum's. Zerosum's advantage is device support (3 vs 1) and ratings volume (38 vs 10). On price, rating, update cadence and ads 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. Kelo sells 4 in-app purchases, starting at $4.99 per month and Zerosum sells 6 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Kelo against 4.9 for Zerosum. Both are backed by a comparable volume of ratings — 10 and 38 respectively. Written reviews are what separate them: 100% of Kelo's written reviews are positive against 92% of Zerosum's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 days. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
Kelo versus Zerosum: the parameters behind the verdict, then further details
ParameterKeloZerosum
PriceFreeFree
Rating5.0 (10 ratings) — better4.9 (38 ratings)
Positive reviews100.0% of reviews — better91.7% of reviews
Number of ratings1038 — better
Update frequencyEvery 2 daysEvery 2 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size80 MB12 MB
Age rating4+4+
DeveloperJose Pedro Franco MorenoPedro Fidalgo

Customer experience

Kelo

All ratings10 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews11 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Zerosum

All ratings35 ratings
Positive97.1%
Neutral2.9%
Negative0.0%
Written reviews24 reviews
Positive91.7%
Neutral4.2%
Negative4.2%

In-app purchases

4 purchases

Kelo

Subscriptions4
  • Kelo Premium7 Days trial$4.991 Month
  • Kelo Premium$4.991 Month
  • Kelo Premium Annual$29.991 Year
Show 1 more
  • Kelo Premium Annual7 Days trial$29.991 Year
6 purchases

Zerosum

Subscriptions6
  • Zerosum Plus (Monthly)1 Month trial$5.991 Month
  • Zerosum Basic (Monthly)1 Month trial$5.991 Month
  • Zerosum Pro (Monthly)1 Month trial$12.991 Month
Show 3 more
  • Zerosum Plus1 Month trial$39.991 Year
  • Zerosum Basic (Annual)$39.991 Year
  • Zerosum Pro (Annual)1 Month trial$89.991 Year

Questions

Is Kelo free?
Kelo is free to download, with in-app purchases available.
Is Zerosum free?
Zerosum is free to download, with in-app purchases available.
Which has better reviews, Kelo or Zerosum?
Kelo is rated higher. Kelo averages 5.0 out of 5 from 10 ratings, while Zerosum averages 4.9 from 38 ratings.
Do Kelo or Zerosum have ads?
Neither Kelo nor Zerosum shows ads.
Which is updated more often, Kelo or Zerosum?
Kelo ships an update every 2 days, and Zerosum every 2 days. Most recently, Kelo was updated on November 8, 2026 and Zerosum on November 5, 2026.

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