Instant Unit Calc vs SMAFlow
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Instant Unit Calc
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Simple Calculator combines a calculator and a unit converter in one app -- see your result converted into other units as you type, no switching required. Key features: - Handles complex expressions with parentheses, not just the four basic operations - An always-visible conversion panel across 5 categories: length, weight, volume, area, and temperature - Mixed-unit math like "2 cm + 3 kg" -- results are kept per unit instead of forcing a wrong conversion - Real dimensional analysis: "3 m Γ 4 m = 12 mΒ²" -- multiplying and dividing changes the unit correctly - Cross-category multiplication/division shows a synthesized unit, like "10 mL Γ· 2 kg = 5 mL/kg" - Define your own custom units, like "1 gold coin = 17 silver coins, 1 silver coin = 23 copper coins" - Three themes: Light, Dark, and follow system setting - A focused, uncluttered interface -- no extra features to get in your way
SMAFlow
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SMAFlow is an accounting application designed to manage your personal financial landscape. It features five distinct sections for handling individual ledgers, daily income and expenses, local searches, consolidated statistics, and encrypted backups. Each ledger maintains its own unique data, accounts, categories, and lock status; when a ledger is locked, its financial figures are hidden and excluded from aggregate statistics. Users can record income, expenses, transfers, and refunds, as well as split expenses across different categories. The app provides visual insights through bar charts for income and expenditure, pie charts for category distribution, and line charts for tracking balance trendsβwith the ability to drill down from these statistics to the underlying transaction records. The application supports search, filtering, and data import via spreadsheets, with separate summaries for different currencies. Backups are stored as standalone recovery files; upon verification of the database and attachments, they can be restored as new ledgers while preserving the original transaction history. The appβs architecture is organized by function, ensuring both a clear, readable interface and robust privacy protection.
Screenshots
Verdict
The clearest difference is ads: SMAFlow at none against Instant Unit Calc's shown. Instant Unit Calc's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and in-app purchases there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Instant Unit Calc | SMAFlow |
|---|---|---|
| Price | Free | Free |
| Update frequency | β | Every 3 days |
| Ads | Yes | No β better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone |
| Requires iOS | 15.0 β better | 17.0 |
| Further details β not scored | ||
| Size | 34 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Keisuke Yamakawa | Kaptan Hasim |
In-app purchases
Instant Unit Calc
No in-app purchases
SMAFlow
No in-app purchases







