Pick a Starting Path Before You Install
Three ways to open Tortu Reenfap, each with a setup tag you can copy into your notes. Pick one, install, and put your confidence on the record.
Default round: 10 questions at 90%
BAND90-QUICK
- 10 questions across all 8 topics
- Adaptive difficulty from the first answer
- Result screen with a question-by-question review
Test all three levels: 50%, 70%, 90%
TRIPLE-CHECK
- The profile tracks each confidence level separately
- Topic breakdown stays blank until you log enough answers
- Overconfident, underconfident or on target, per setting
Estimate real life, score it later
FIELD-PHOTO
- Set a band on a real quantity and attach a photo
- Return later to enter the true value
- A sample mode shows a worked example first
Setup tags are personal round labels for your own notes. They are not payment offers or store promo codes. Pricing and availability are shown on the App Store listing.
How One Round Plays Out, Start to Scoreboard
Before You Answer
- Open the Practice tab. The card "This round will be" shows 10 questions, 90% confidence, 8 topics and Adaptive difficulty.
- Tap that card to change the length, topics, confidence or difficulty.
- Pick 50%, 70% or 90%. That is the claim you will be judged against.
While You Answer
- Each question asks for a number, such as the length of a standard football pitch in metres.
- Drag two handles to set your band. A tick marks the true value after you answer.
- Tight band that holds the truth: you score high. Band that misses: zero.
- Tap "Flag for review" on anything you want to see again.
After the Round
- The round result screen compares your hit rate with your claim.
- "See it question by question" lists every answer with HIT or MISS and its points.
- Use "Show misses only" or "Flag all misses" to build your review set fast.
- Choose "Adjust and replay" or "Play again" to go straight back in.
Between Rounds
- "Open my review set" lists flagged questions. Remove any, or press "Drill all".
- Answers in the review set score straight into your profile.
- Field tab: log real-world estimates, filter by All, Open or Resolved.
Why a Band Beats a Guess: the Scoring Engine Explained
Most quizzes ask for one number and mark it right or wrong. Tortu Reenfap asks for a range and a promise. Claim 90% and the true value should land inside your band nine times in ten. Over many answers, the app compares that claim with your real hit rate. In the app's own example, a 90% claim with 6 of 10 bands containing the answer reads 60%, a gap of -30%, and the verdict is "Overconfident."
Scoring uses Winkler's Interval Score. A tight band that contains the truth earns more, and a needlessly wide band is penalised. You cannot game it by stretching a range to cover everything. A miss scores 0, while a clean hit in the sample review earns 88 points.
The 168 real-world fact questions span eight topics: Earth and Water, Living World, Space, Human Body, Physics and Forces, Dates and Eras, Built World and Everyday Things. Adaptive difficulty adjusts the questions. The Calibration Profile breaks your result down by topic and says "needs 4 more" until a topic has enough answers to judge.
Verified Specifications
| App name | Tortu Reenfap |
|---|---|
| Platform | iOS, App Store id 6827485940 |
| Category | Education |
| Version | 3.0 |
| Release notes | Stability improvements. |
| Question bank | 168 questions, 8 topics |
| Confidence levels | 50%, 70%, 90% |
| Default round | 10 questions, 90%, 8 topics, Adaptive |
| Scoring | Winkler's Interval Score |
| Navigation | Bottom tabs: Practice, Profile, Field and one more |
| Store rating | None shown yet |
| Size, OS, age rating | See the App Store listing |
Six Tools That Put Your Confidence Under Audit
Range-Based Estimates
Answer with a band and a stated confidence of 50%, 70% or 90%. The app tests the claim, not just the number.
Interval Score Points
Tight and correct pays best. Wide and lazy is penalised. Winkler's Interval Score keeps every band honest.
Calibration Profile
See "Overconfident," "underconfident" or "on target" on a gauge, with your gap to claim, typical width and average points.
168 Facts, 8 Topics
From Olympus Mons to the number of hearts an octopus has. Adaptive difficulty keeps the questions on your edge.
Review Set and Drill All
Flag misses from the round result, then replay them in one sweep with "Drill all." Answers feed your profile.
Field Estimates
Set a band on a real quantity, attach a photo, come back with the true value and score it. A sample mode shows how.