Comparison

No Spend Tracker vs Keep the Diff

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

Head to head
About

No Spend Tracker

This app helps you track money you've saved by resisting impulse purchases. It focuses on recording your self-control wins, not managing your budget, to help you build a saving habit and reduce unnecessary spending.

Highlights
  • Track money not spent
  • Stop impulse buying
  • Build a saving habit
  • Simple and fast tracking
  • Set savings goals
  • Record self-control wins
Read full description

Skipped the snack. Did not buy that coffee. Closed your Amazon cart. That is money you saved. Track it. NoBuy is a no spend tracker. Most apps track what you spend. This app tracks what you did not spend. Every time you resist, your savings grow. No real money moves, but the progress is real. Features Track money you did not spend Stop impulse buying Build a saving habit Simple and fast How it works Set a goal Do not buy something Enter the amount Watch it grow That is all. Who this is for People who quit budgeting apps People who cannot seem to save money People who want to reduce impulse spending People who want small daily wins People who want to build habits Why it works There is no complex management. You only record what you did not spend. No bank connection required. No risk. No pressure. Just simple daily progress. NoBuy is not a budgeting app. It is a record of your self control. Start with what you did not buy today.

About

Keep the Diff

Features
Read full description

Keep the Diff gives you credit for money you decided not to spend. You talk yourself out of things all the time, and nothing keeps a record of those choices, so they never feel like progress. Keep the Diff keeps that record. PLANNED SPEND MINUS ACTUAL SPEND EQUALS THE DIFF It comes down to two numbers: 1. What you were ready to spend. The dinner you nearly ordered, the jacket in the tab you closed. 2. What you actually spent. Often nothing. There is a "Didn't buy" button for the common case. The difference is yours. It adds up by week, by month, and toward whatever you are saving for. PLAN IT BEFORE YOU SPEND IT Plan a spend is the other way round: put in what you are ready to spend on something coming up, pick later today, tomorrow morning or in three days, and get on with your evening. When that time comes the app asks what you actually spent, and the Diff is the gap. Until then, a countdown on Home and on the Lock Screen shows when the question is coming. One switch in Settings turns the countdown off. Planning and answering are part of Classic. YOU DECIDE WHAT COUNTS There is no budget to keep and no challenge to pass. Keep the Diff never tells you what to spend, never links your bank account, and never shows you a red number. NOT SURE YET Not sure about a purchase? Add the item and its price to the Not sure yet list, and pick when to be asked again: tomorrow, in a few days, or in a month. When the time comes, skip the purchase and the Diff is yours, or buy the item with nothing lost. Classic keeps one item at a time; Plus keeps as many as you like. THE 52 WEEK CHALLENGE Make a goal a 52 week savings challenge. Pick the weekly step and whether to start small or start big, and the goal card shows how you are doing against the plan each week. Falling behind never resets anything. YOUR YEAR IN REVIEW Each December and January, a card sums up your year: the total you kept, how many Diffs, your biggest skip, and the goals you reached, with your goal photo. Share the card if you like. Part of Classic. WHAT CLASSIC INCLUDES Logging decisions is part of Classic. So is this week's total, your recent history, and the weekly recap you can share. So is choosing the currency you think in, fifteen of them, each in its own format. Your milestones are marked as you reach them, and you can share one. WHAT PREMIUM ADDS - Your full history, with CSV export - Categories and breakdowns - Goals, with a photo of the thing you are saving for, and a projected pace toward each one - Recurring Diffs, so a canceled subscription counts every month, for up to a year - Sync across every device you sign in on - Widgets, including one for each goal and a large widget, Lock Screen entry, and the watch app - The Mac app - App Lock: Face ID, Touch ID or your passcode in front of your numbers NOW IN 21 LANGUAGES Keep the Diff speaks your language. YOUR MONEY STAYS YOURS TO KNOW ABOUT Keep the Diff does not connect to your bank. You never link an account, hand over a bank password, or share a transaction feed. An account is optional, and logging never needs one. If you sign in and turn on sync, your ledger is encrypted on your device before it leaves, so we never see anything you write down. No analytics, no tracking. PREMIUM SUBSCRIPTION Keep the Diff Plus is $33.99 per year or $6.99 per month. New installs also get 3 days of Plus to try first. Plus Lifetime is a one-time purchase of $91.99. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. Manage the subscription, or turn off auto-renew, in your Apple Account settings after purchase. Privacy policy: https://keepthediff.com/privacy Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

No Spend Tracker4 screens
Keep the Diff4 screens

Verdict

The call

The clearest difference is price: Keep the Diff at Free against No Spend Tracker's $0.99. Keep the Diff also leads on update cadence (every 6 days vs every 6 weeks) and device support (4 vs 2). On ads, in-app purchases and iOS requirement 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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Keep the Diff is free to download; No Spend Tracker costs $0.99 up front. No Spend Tracker sells 1 one-off in-app purchase and Keep the Diff sells 4 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

No Spend Tracker ships an update every 6 weeks, Keep the Diff every 6 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard3 real differences ยท 5 level
No Spend Tracker versus Keep the Diff: the parameters behind the verdict, then further details
ParameterNo Spend TrackerKeep the Diff
Price$0.99Free โ€” better
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 6 weeksEvery 6 days โ€” better
AdsNoNo
In-app purchasesYesYes
MonetizationPaidโ€”
DevicesiPhone, iPadiPhone, iPad, Mac, Apple Watch โ€” better
Requires iOS17.017.0
Further details โ€” not scored
Size21 MB15 MB
Age rating4+4+
Developerkaisei watanabeAugustus Travels LLC

In-app purchases

1 purchases

No Spend Tracker

One-time1
  • Premium One-time$3.99
4 purchases

Keep the Diff

Subscriptions3
  • Plus Monthly$6.991 Month
  • Plus Annual1 Year trial$33.991 Year
  • Plus Annual, 3-day trial3 Days trial$41.991 Year
One-time1
  • Plus Lifetime$91.99

Questions

Is No Spend Tracker free?
No Spend Tracker costs $0.99, and also offers in-app purchases.
Is Keep the Diff free?
Keep the Diff is free to download, with in-app purchases available.
Do No Spend Tracker or Keep the Diff have ads?
Neither No Spend Tracker nor Keep the Diff shows ads.
Which is updated more often, No Spend Tracker or Keep the Diff?
No Spend Tracker ships an update every 6 weeks, and Keep the Diff every 6 days. Most recently, No Spend Tracker was updated on November 8, 2026 and Keep the Diff on October 31, 2026.

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