Best Islamic Inheritance Apps in 2026: A Reviewed Comparison

Islamic inheritance (Fara'id) is one of the few areas of fiqh that involves real arithmetic — fractions, blocking rules, and a handful of named edge cases. A good calculator removes the math error from a stressful moment and makes scholarly opinions easier to compare. A bad one outputs a number with no explanation, runs on a single school silently, or buries the result behind ads.

Below is an honest comparison of the apps and tools we evaluated in early 2026, with the strengths and weaknesses of each. Our focus is the iPhone audience — a few cross-platform tools are included for completeness, but the comparison weights iOS experience heavily.

What to look for

Five questions to ask before trusting any inheritance calculator:

1. Does it tell you which school it's using? The Hanafi, Maliki, Shafi'i, and Hanbali schools agree on most rulings but diverge in known cases (Grandfather with siblings, Musharakah, certain residuary scenarios). A calculator that doesn't name its school is hiding relevant differences.
2. Does it show the Quranic source? Every fixed share traces back to a verse (mostly An-Nisa 4:11, 4:12, 4:176). A calculator that surfaces the verse alongside the number is teaching, not just computing.
3. Does it handle Awl, Radd, and special cases? If you input a family that triggers Umariatan or Musharakah and the calculator silently gives you the wrong distribution, that's a serious bug — and it's common.
4. Does it work offline? Inheritance conversations often happen at funerals or in hospitals where Wi-Fi is unreliable. Offline-first is more than a nicety.
5. What does it do with your data? Family composition is sensitive. A free app that uploads your queries for "analytics" is a privacy concern even if it's not a religious one.

The apps, side by side

The short version

If you want a single recommendation: try FairShare. It's the only app we know of that compares all five Sunni schools side by side and links every share to its Quranic source — which is, in our view, the right table-stakes for any serious Fara'id tool. (Disclosure repeated: we made it.)

If you specifically need Ja'fari/Shia rulings, none of the apps in this list cover them. The Ja'fari inheritance system is sufficiently different that it deserves its own dedicated tool — there are a handful of specialty calculators in the App Store, mostly Arabic-first.

If you want to verify the math by hand, the spreadsheet route is still useful — and a good companion to any app, since you can audit every step.

How we evaluated

We tested each tool against five fixed scenarios that are known to expose calculator bugs:

1. Husband + mother + father: classic Umariatan. Mother should get 1/3 of the remainder, not 1/3 of the total.
2. Husband + mother + 2 maternal half-siblings + 1 full brother: Musharakah. The full brother should join the maternal half-siblings in their 1/3 share — under all schools except Hanafi.
3. Wife + 3 daughters + both parents: exposes whether Awl is applied correctly when shares exceed 100%.
4. Mother + daughter (no husband, no others): exposes whether Radd is applied when the residue has no claimant.
5. Grandfather + 2 full brothers + 1 full sister (no father): exposes the four-school disagreement on the grandfather-with-siblings case.

Apps that produced incorrect results on any of the five — or that produced a result without naming which school they were applying — were marked down. The list above reflects that testing.

Updates

This guide will be refreshed each January as new versions ship. If you publish or know of a Fara'id app we missed, email hello@guigalabs.com and we'll evaluate it for the next pass.