Read a spin app before install when the reader wants a fast round and a stated coin-reward curve. Suitable for short sessions, less so for long play.
What separates two apps in this category
Single biggest differentiator
Read the round-history retention. A wheel app that only retains the last 50 rounds is harder to verify after a long session.
Spin apps differ from slots apps on one axis: the round length is shorter and the multiplier curve is published up front. The multiplier curve is the table on the developer page that says "x2 lands on 30 percent of spins" or "x10 lands on 3 percent". A developer that publishes the curve is telling the reader exactly what the long-run distribution looks like. A developer that does not publish the curve is asking the reader to trust the round history.
The directory treats spin-the-wheel apps as one decision-rule family. Empty sub-families are not published. The cards below cover the entries we have read on the developer page. New entries appear here as soon as the changelog is verified and the developer page is opened.
Editorial
How the directory treats spin-the-wheel apps
The five sections below cover the editorial reading order: what the category is, how to read a version note, how to read the round surface, how to read the responsible-use surface, and how to choose an entry.
How a spin app differs from a slot app
A spin app and a slot app share a wheel metaphor and almost nothing else. The slot app rewards a fixed reel-strip combination; the spin app rewards a wedge the pointer lands on. The round length is also different: a spin round resolves in two seconds, a slot round resolves in five to ten. A reader who treats a spin app as a slot app will over-rate the win frequency.
Coin-curve reading rules
When the developer publishes a coin curve, the curve is read as "the wedge has probability p, the wedge pays m times the bet". The expected value per round is the sum of p*m. The variance per round is the spread of the curve. A flat curve (all wedges pay the same) has low variance and low expected value. A peak curve (one wedge pays fifty times the bet) has high variance and a similar expected value. The shape of the curve is what to read, not the headline number.
Version notes that matter on spin apps
The version bumps that change the most on spin apps are coin-curve rebalances and round-log retention changes. A version that introduces a new curve is worth a re-read because the new curve may have a different expected value than the old one. A version that only renames a menu is not.
What the round history tells a reader
Spin apps with short round length generate hundreds of rounds in a single session. The round history is the only verification surface after the fact. An app that exports a signed CSV lets the reader verify the curve against the developer-claimed numbers. An app that retains the last 50 rounds does not.
Responsible-use surface on spin apps
A daily loss cap is the strongest signal because the round length is short and the temptation to chain rounds is high. Where the developer publishes a daily cap, the entry lists it. Where the developer is silent, the entry reads "not published".
When to read a spin app before tapping install
Choose when the reader wants a fast round and a stated coin reward curve. Suitable for short sessions, less so for long play.
What separates two apps in this category
Single biggest differentiator
Read the round-history retention. A wheel app that only retains the last 50 rounds is harder to verify after a long session.
19 entries indexed. The cards below cover the entries we have read on the developer page. New entries will appear here as soon as the changelog is verified.
Comparison table
Spin apps compared on version, Android requirement and source signal
The table is short on purpose. We compare only the fields the developer page has actually published.