Grade tables, score lookup and assignment tracking for teachers
Does GradeKey — Grade Calculator work on iPhone Duo?
Yes, the developer says so: version 1.6 of GradeKey adapts its grade tables, score lookup and keypad to the Duo's open and tabletop layouts, the App Store release notes say.
- App Store confirmedThe developer, in the App Store release notes for version 1.6 (released October 10, 2026), which name the grade tables, Quick Lookup and the compact keypad in open, landscape and tabletop layouts.
Adapted for the fold
We're waiting on details of exactly what GradeKey — Grade Calculator changes for the fold. Are you the developer? Tell us.
About GradeKey — Grade Calculator
GradeKey turns an assignment’s point total into a table of scores, percentages and letter grades. It keeps assessments in folders and supports custom grading scales.
Version 1.6 adds iPhone Duo support, the release notes say: the grade tables, Quick Lookup and a compact keypad adapt to the open display, landscape and tabletop use. They don’t say where each part goes.
Evidence reviews
What we checked, when, and what the evidence establishes. Each record preserves the support label at that check.
· App Store page reviewed
App Store confirmed · iphone-duo
The App Store release notes for version 1.6 (released October 10, 2026) mention iPhone Duo: "New iPhone Duo support: grade tables, Quick Lookup, and the compact keypad adapt across open, landscape, and tabletop poses."
App version: 1.6.
Store text only: we haven't seen the app running, and the store page doesn't show how each pose is used.
View reviewed evidence ↗· Developer statement reviewed
Developer claimed · iphone-duo
Read the Duo statement for version 1.6 on the App Store page and in Apple's lookup, and looked at all 13 iPhone and iPad pictures.
App version: 1.6.
The pictures show ordinary iPhones and iPads, so they don't show the Duo layouts or where the keypad sits. No build was installed or tested.
View reviewed evidence ↗
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Is this your app?
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Sources: GradeKey on the App Store (apps.apple.com) · GradeKey in Apple's app lookup (itunes.apple.com)
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Simulator verified: Simon Pinkas, the developer, in a submission to FoldHunt on October 22, 2026, describing the closed, opening, half-folded, open and Split View layouts. The press kit has screenshots set in Apple's iPhone Duo artwork. RectoVerso came out on the App Store on October 23, 2026, at version 1.0.2: its description has an On iPhone Duo section, and the release notes mention opening iPhone Duo to reveal a figure's labels and Stats showing its chart beside the summary on the open, upright phone.
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Simulator verified: DM Solutions and Development, the developer, in a submission to FoldHunt on October 15, 2026, saying it will be ready on launch day, with a recording of version 1.0 in the iPhone Duo simulator on YouTube. The app is on the App Store as Facing Pages: Learn Languages (version 1.0.2, first released October 19, 2026), and its description has a "MADE FOR IPHONE DUO" section.
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Simulator verified: Individuation Labs, the developer, in a submission to FoldHunt on October 27, 2026, and on the Fretalus website, with App Store screenshots from the iPhone Duo simulator. The App Store seller is Individuation Labs LLC. The release notes for version 1.4.2 (released October 24, 2026) say that on an unfolded iPhone Duo the question sits beside its answers.
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