Comparison

API Zen vs iStructly

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

Head to head
About

API Zen

Features
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API Zen brings the convenience of HTTP API endpoint testing on the go. With its intuitive request composer and detailed response information, it helps developers test endpoints with ease. Main features • Simple and intuitive request composer and viewer • Supports headers, request parameters, request body with JSON, XML, raw input, forms with file, image attachments, multipart and binary data • Organize endpoints into workspaces and projects • Enable iCloud syncing when creating a new workspace. If syncing is disabled workspace will be created on device only. • Seamless switching between local and iCloud workspaces • Option to add custom HTTP methods per project • Detailed response information which includes headers, cookies, metrics and connection information • View raw response with syntax highlighting • Preview HTML response output as web page • View all response history • SSL validation per request • Environment group with variables per workspace with option to select different environment per request • Supports dark mode • Import/Export workspace data API Zen is free for use. The app accepts optional donations which supports the development work.

About

iStructly

Features
Read full description

macOS tool to format, validate, and beautify your JSON with clarity and precision.

Screenshots

API Zen4 screens
iStructly4 screens

Verdict

The call

The clearest difference is in-app purchases: iStructly at none against API Zen's 3. iStructly also leads on update cadence (daily vs every 2 months). API Zen's advantage is iOS requirement (13.0 vs 17.0). On price, ads 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. API Zen sells 3 one-off in-app purchases. iStructly asks for nothing beyond the download.

UpkeepUpdate frequency

API Zen ships an update every 2 months, iStructly daily. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

Scorecard3 real differences · 3 level
API Zen versus iStructly: the parameters behind the verdict, then further details
ParameterAPI ZeniStructly
PriceFreeFree
Update frequencyEvery 2 monthsDaily — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS13.0 — better17.0
Further details — not scored
Size7 MB1 MB
Age rating4+4+
DeveloperJaseem Valiya ValappilBasel AbuTaleb

In-app purchases

3 purchases

API Zen

One-time3
  • Thanks$3.99
  • Thank you$5.99
  • Thank you very much$7.99
None

iStructly

No in-app purchases

Questions

Is API Zen free?
API Zen is free to download, with in-app purchases available.
Is iStructly free?
iStructly is free to download, with no in-app purchases.
Do API Zen or iStructly have ads?
Neither API Zen nor iStructly shows ads.
Which is updated more often, API Zen or iStructly?
API Zen ships an update every 2 months, and iStructly daily. Most recently, API Zen was updated on October 2, 2026 and iStructly on October 7, 2026.

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