The answer stayson your phone.
Consumer apps built on one shared chassis. Every check runs on the device, names the rule behind each finding, and makes no network request while it works.
Apps in the range
None of these has been submitted to a store yet. Each page says exactly where the app stands and what it does not do.
Skelm
Scam Message Checker
On-device scam-message checker for South African consumers. Pastes an SMS, WhatsApp message, or email through a 25-rule engine built for local bank names, SARS/SASSA/Home Affairs impersonation, and payment rails like eWallet and vouchers, then names the exact reasons a message looks like a scam instead of returning a bare score. Checking a message makes no network request of any kind.
By When
Deadline Finder
On-device deadline reader for letters, notices, contracts, invoices and bookings. A pure text reader finds every deadline the document sets, computes the calendar date, and shows the sentence that set the clock alongside what the text says happens if it is missed. Twenty-one named rules produce the urgency band, and when the document gives no start date the app says it assumed today so you can check. Finding the dates makes no network request of any kind.
Order Audit
Confirmation Checker
On-device checker for order and shipping confirmations. It re-adds the total against the line items, names every charge that was not in the basket, and pulls the return window out as a computed date. Nineteen named rules cover arithmetic, surcharges, return conditions and how close the deadline is, and locale-aware number parsing reads both comma and full-stop decimal conventions. Checking a confirmation makes no network request of any kind.
RugbyIQ
Rugby Law Scenarios
Rugby's laws taught as animated scenarios on a 2D pitch: where the tackle gate is, who is offside at a kick and how the kicker puts them onside, what the referee is actually looking at. Behind each scenario, ten coded law engines walk the official decision processes step by step and cite the law they applied, checked against 193 pinned cases including 64 bound to published rulings. Learning the laws runs entirely on the phone and every scenario is free.
One chassis, one cartridge each
The shared half is written once: the scoring engine, the entitlement and paywall seam, the history, the share sheet and the voice intents. Each app swaps only its brand and its rule set. That is why four apps exist and why none of them is a recolour of another. Apple's guideline 4.3 rejects apps indistinguishable from what is already available, so every app here has to differ in what it reads and what it returns before a line of it is written.
None of them sends what you paste anywhere. The rules run on the device, and each finding names the rule that produced it rather than returning a bare score. Every rule is pinned to test cases that run before a build ships.