Comparison

Stack vs Shahy

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

Head to head
About

Stack

Easily track and manage personal finances by categorizing credit and debt across multiple devices. Create separate spaces for different financial situations, share summaries, and use the built-in calculator for complex calculations.

Highlights
  • Categorize credit and debt
  • Create multiple financial spaces
  • Share debt summaries
  • Integrated value calculator
  • Split expenses easily
  • App lock with Face ID/Touch ID
  • Apple Watch app for on-the-go management
Features
Read full description

Stack is the fastest debt management app for iPhone, iPad, Apple Watch and Mac. It enables you to categorize money you are owed and money you owe, and conveniently track and manage your finances across multiple devices. Stack offers the following features: • Spaces: Create multiple Spaces to categorize your debt. For example, you can create a Space for each friend who owes you money. • Add Entries: Add an entry to a Space with one tap. Give each entry a name, quantity, and value. Use a positive value for money you are owed and a negative value for money you owe. Entries in Spaces can be sorted by date, value, or name. • Remove Debt: Removing debt is also straightforward. Tap on the circle on the left side of a debt entry to remove it. If you accidentally removed an entry, you can restore it later, similar to the Reminders app. • Share Debt: You can choose to share the debt of a Space, which generates a list of all debt and the total sum. You can choose if you want to include entries previously marked as complete, and you can choose to include the date of the entry. The date can also be edited. • Value Calculator: You can use the integrated calculator to perform complex calculations and then transfer them directly to the value field. • Split Sum: With this feature, sharing expenses is easy. Just choose the number of parts you want to split a Space's total into, and Stack will automatically calculate the amount of each part. • App Lock: Stack offers Face ID or Touch ID to lock the app, ensuring that only you can access it. • Apple Watch App: You can view, edit, and add new entries on your Apple Watch. No connection to your iPhone is required. • iCloud Sync: All your data is synced between your iPhone, iPad, Apple Watch and Mac. • Privacy: Your data is stored only on your device and in iCloud. The app does not collect any user data, and the developer has no access to it. • Text Field Sizes: You can adjust the name field and the value field sizes to your preference.

About

Shahy

Features
Read full description

Shahy is a personal money tracker built around the Ukrainian hryvnia. See at a glance how much you have, what is still left to pay this month, and where your money goes. • Accounts: as many cards as you need plus cash, with transfers between them. • Installments: this month's payment, remaining debt and payoff date. • Subscriptions and recurring payments: the app asks you to confirm each charge on its due date. • Debts with a reminder on the due date. • Savings, deposits and government bonds: interest and coupons are recorded automatically. • Analytics by month and category, monthly limits with notifications. • Dollars and euros with an exchange rate to hryvnia. • Balance and To pay widgets. Sync across your iPhones, single-file backup, CSV import and export, Face ID lock. Ukrainian and English.

Screenshots

Stack4 screens
Shahy4 screens

Verdict

The call

The clearest difference is in-app purchases: Shahy at none against Stack's 1. Shahy also leads on update cadence (every 3 days vs every 6 weeks). Stack's advantage is device support (4 vs 1) and iOS requirement (16.0 vs 26.0). On price 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. Stack sells 1 one-off in-app purchase. Shahy asks for nothing beyond the download.

UpkeepUpdate frequency

Stack ships an update every 6 weeks, Shahy every 3 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Stack versus Shahy: the parameters behind the verdict, then further details
ParameterStackShahy
PriceFreeFree
Rating4.3 (6 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings6 — better—
Update frequencyEvery 6 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone
Requires iOS16.0 — better26.0
Further details — not scored
Size32 MB9 MB
Age rating4+4+
DeveloperLeon BoettgerPavlo Duda

In-app purchases

1 purchases

Stack

One-time1
  • Stack+$0.99
None

Shahy

No in-app purchases

Questions

Is Stack free?
Stack is free to download, with in-app purchases available.
Is Shahy free?
Shahy is free to download, with no in-app purchases.
Do Stack or Shahy have ads?
Neither Stack nor Shahy shows ads.
Which is updated more often, Stack or Shahy?
Stack ships an update every 6 weeks, and Shahy every 3 days. Most recently, Stack was updated on November 3, 2026 and Shahy on October 31, 2026.

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