Skip to content
IndieMakerList

diff ~/p/dong-nguyen ~/p/riley-testut

Dong Nguyen vs Riley Testut

Products, revenue & stack compared side by side.

DN

Dong Nguyen

Vietnamese developer who made Flappy Bird, then pulled it at the height of its fame

Riley Testut avatar

Riley Testut

Indie iOS developer behind the Delta emulator and the AltStore alternative app store

Dong Nguyen vs Riley Testut at a glance

Dong Nguyen and Riley Testut are both indie makers listed on IndieMakerList. They overlap in Indie Game Makers and Mobile App Makers. Dong is based in Hanoi, Vietnam, Riley in New York, United States. Dong Nguyen has 8 products listed on IndieMakerList vs Riley Testut's 4. On X, Dong has about 102K followers and Riley about 43K.

Side-by-side comparison

Based in
Dong Nguyen: Hanoi, Vietnam
Riley Testut: New York, United States
Started
Dong Nguyen: 2012 (14 yrs indie)
Riley Testut: —
Revenue (self-reported)
Dong Nguyen: Not public
Riley Testut: Not public
Products listed
Dong Nguyen: 8
Riley Testut: 4
Product status
Dong Nguyen: 7 active · 1 shut down
Riley Testut: 3 active · 1 shut down
X followers
Dong Nguyen: 102K
Riley Testut: 43K
Style
Dong Nguyen: bootstrapped
Riley Testut: duo
Courses & resources
Dong Nguyen: —
Riley Testut: —

Revenue figures are self-reported by each maker and not audited; dates and scope differ. Highlighted categories are shared by both.

Top products

DNDong Nguyen

Flappy Bird logo

Flappy Bird

dotgears.com

shutdown

Viral one-tap mobile game about guiding a bird through gaps between pipes; removed by Nguyen in February 2014.

~$50K/day in ads at peak
Swing Copters logo

Swing Copters

dotgears.com

Even harder follow-up one-tap game where a propeller-hat character climbs between swinging hammers.

Updated multiplayer version of Flappy Bird released exclusively for Amazon Fire TV.

Shuriken Block logo

Shuriken Block

dotgears.com

Reflex game about blocking incoming shurikens that charted alongside Flappy Bird.

See all 8 products by Dong Nguyen →

Riley Testut avatarRiley Testut

Delta logo

Delta

faq.deltaemulator.com

Retro game emulator for iPhone and iPad supporting Nintendo consoles from NES to DS.

AltStore logo

AltStore

altstore.io

Alternative iOS app store, including AltStore PAL for the EU, with Patreon-based app funding.

Clip logo

Clip

altstore.io

Clipboard manager for iOS distributed through AltStore to Patreon supporters.

GBA4iOS logo

GBA4iOS

github.com

shutdown

Early Game Boy Advance emulator for iOS he built as a high-school student, distributed outside the App Store.

Tech stack

No tools in common in their publicly listed stacks. See the indie maker tech stack.

DNDong Nguyen

No stack shared publicly.

How they build

DNDong Nguyen

  • Simple one-tap mechanics with high difficulty can be deeply compelling.
  • Build small games quickly and release many of them.
  • Personal wellbeing matters more than chasing a hit's revenue.
  • Avoid the spotlight and let the games speak for themselves.

Riley Testut avatarRiley Testut

  • Let supporters fund indie software directly through Patreon.
  • Push for more open distribution on iOS.

Dong Nguyen vs Riley Testut FAQ

Who makes more money, Dong Nguyen or Riley Testut?

Neither Dong Nguyen nor Riley Testut has publicly reported a revenue figure that IndieMakerList tracks, so it's not public.

Who has built more products, Dong Nguyen or Riley Testut?

Dong Nguyen has 8 products listed (including Flappy Bird, Swing Copters and Flappy Birds Family); Riley Testut has 4 products listed (including Delta, AltStore and Clip).

What tech stack do Dong Nguyen and Riley Testut use?

Dong Nguyen hasn't shared a stack. Riley Testut uses Swift. They don't list any tools in common.

Where are Dong Nguyen and Riley Testut based?

Dong Nguyen: Hanoi, Vietnam. Riley Testut: New York, United States.

Who has been an indie maker longer, Dong Nguyen or Riley Testut?

Dong Nguyen started in 2012 (14 years indie); Riley Testut's start year isn't listed.

Are Dong Nguyen and Riley Testut bootstrapped?

Dong Nguyen is listed as bootstrapped; Riley Testut isn't tagged as bootstrapped on IndieMakerList.

Full profiles

Read the full story, timeline and links on Dong Nguyen's profile and Riley Testut's profile.

More comparisons