iPartyHeteroptics vs SAKUSHI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iPartyHeteroptics
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[Basic information] iPartyHeteroptics is a profitable application to be able to experience ten kinds of heteroptics contents by operating it while making it. Please move a straight line, a triangle, and patterned icon, stop the moving figure, and experience the mystery of various heteropticses ! Let's become the center of the topic of the party by using ten kinds of heteroptics contents ! (1)"Circle of different size ?" : Mysterious circle that seems quite different size though it is the same size, by surrounding circles bigness and smallness (2)"Distorted square ?" : Mysterious square that seems distorted by fan straight line position (3)"Is different straight line length ?" : Mysterious straight line that looks long or short, by arrow that changes angle and opens and shuts (4)"Inclining parallel lines ?" : Mysterious parallel lines that seems inclined by detailed slash that changes angle (5)"Parallelogram of different size ?" : Mysterious parallelogram that seems completely different size by a position (6)"Different color ?" : Mysterious gray square that seems quite different color of density by the changing background color (7)"Circle of lattice pattern that begins to move ?" : Mysterious lattice patterned circle that seems to begin moving like it on drop of water when putting it in lattice pattern (8)"Is the pattern distorted ?" : Mysterious pattern to which it begins to distort the horizontal, vertical line when putting it in lattice pattern (9)"Triangle that does expansion reduction ?" : Mysterious equilateral triangle into which size seems to have changed by place where triangle is put (10)"In which direction is this penguin rotating ?" : Clockwise? Anti-clockwise? In which direction does the penguin seem to be rotating for you ? How do you surprise a surrounding person ? It is depending on you how to use the content of "iPartyHeteroptics". Please brighten up the party by the way only of you. [Web site] iPartyHeteroptics Official site http://www.adp.co.jp/iph_top/ Our official site http://www.adp.co.jp/
SAKUSHI
Explore the fascinating world of optical illusions with this app. It features 15 different types of visual illusions for you to discover and enjoy.
- 15 optical illusion images
- Visual illusion exploration
- Entertainment app
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「錯視」・・・錯視とは、視覚に関する錯覚、つまり「目の錯覚」のことです。 このアプリはその錯視を楽しめる、15種類の錯視画像を閲覧できるアプリです。
Screenshots
Verdict
The clearest difference is price: SAKUSHI at Free against iPartyHeteroptics's $0.99. SAKUSHI also leads on iOS requirement (8.0 vs 13.0). On update cadence, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
SAKUSHI is free to download; iPartyHeteroptics costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
iPartyHeteroptics ships an update every 60 months, SAKUSHI every 35 months. The most recent releases landed on September 15, 2026 and September 8, 2026 respectively.
| Parameter | iPartyHeteroptics | SAKUSHI |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 33.3% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 60 months | Every 35 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.0 | 8.0 — better |
| Further details — not scored | ||
| Size | 214 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Amenity Design&Planning ,Ltd. | Yournet |
In-app purchases
iPartyHeteroptics
No in-app purchases
SAKUSHI
No in-app purchases









