iPartyHeteroptics vs Scary Ringtone Sounds
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iPartyHeteroptics
Explore ten types of optical illusions by interacting with shapes and patterns. Manipulate lines, squares, and circles to experience visual mysteries and become the life of the party with these engaging illusions.
- Ten types of optical illusions
- Interactive shape manipulation
- Visual mystery experiences
- Party entertainment content
- Engaging pattern distortion
- Size and color perception illusions
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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/
Scary Ringtone Sounds
Access a collection of free horror and terror sound effects for your device. Use them as ringtones, text message alerts, alarms, or for pranks. The app is updated regularly with new sounds and is safe to use.
- Free scary sound effects
- Customizable ringtones
- Text message sounds
- Alarm and notification alerts
- Regular updates with new sounds
- Easy to use interface
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Scary ringtone sounds includes free scary sound effects of horror and terror that you can listen to at the press of a button or use as a scary ringtone, text message sound, alarm and more. Scare your friends every time you get a text message or your phone rings. We update often with new scary sound effects and ringtones. These scary sounds are perfect for a halloween ringtone, to prank your friends or just for fun. - updated scary ringtones - easy to use - free and safe Enjoy these free scary ringtones and sound effects! With this app you can set a ringtone for a person calling. You can also set a ringtone for a text message sound, alarm or notification.
Screenshots
Verdict
The clearest difference is review sentiment: iPartyHeteroptics at 100% against Scary Ringtone Sounds's 25%. iPartyHeteroptics also leads on ads (none vs shown). Scary Ringtone Sounds's advantage is price (Free vs $0.99) and update cadence (every 18 months vs every 60 months). On in-app purchases, device support and iOS requirement 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
Scary Ringtone Sounds 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, Scary Ringtone Sounds every 18 months. Both last shipped on November 1, 2026.
| Parameter | iPartyHeteroptics | Scary Ringtone Sounds |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | — | 4.3 (183 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 25.0% of reviews |
| Number of ratings | — | 183 — better |
| Update frequency | Every 60 months | Every 18 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 214 MB | 36 MB |
| Age rating | 4+ | 12+ |
| Developer | Amenity Design&Planning ,Ltd. | E K S Boltz |
Customer experience
iPartyHeteroptics
Scary Ringtone Sounds
In-app purchases
iPartyHeteroptics
No in-app purchases
Scary Ringtone Sounds
No in-app purchases
Questions
Is iPartyHeteroptics free?
Is Scary Ringtone Sounds free?
Do iPartyHeteroptics or Scary Ringtone Sounds have ads?
Which is updated more often, iPartyHeteroptics or Scary Ringtone Sounds?
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