Comparison

Trigger Keeper vs Parallel

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

Trigger Keeper

Features
Read full description

Prop your phone anywhere, step into the frame or keep your hands on the job, and say the word. Trigger Keeper hears it and takes the photo. No timer sprint, no asking strangers, no one missing from the picture. HOW IT WORKS Pick your trigger word. Any word you like, from "cheese" to something only your family says. Frame the shot and tap Play. Trigger Keeper starts listening. Say the word. The flashlight blinks so everyone knows it heard you, and the shutter fires. Or just smile. With Smile to shoot on, it takes the photo when everyone in frame is smiling. MADE FOR REAL PHOTOS Your word, not a wake phrase. No "Hey Siri" required. Burst mode takes three shots in a row, so blinks and mid-laugh frames don't cost you the photo. Live Photo support captures the moment around the moment. 0.5x ultra-wide to 6x zoom, with pinch or one-tap lens presets. 4:3, square, and 16:9 framing. The volume buttons and Camera Control work as a manual shutter. PRIVATE AND LOCAL Speech recognition and smile detection run entirely on your iPhone. Trigger Keeper contains no networking code at all. It cannot send your audio, your photos, or anything else anywhere. No account. No ads. No analytics. It works in airplane mode, because nothing it does ever needed the internet. Listening stops when you tap Stop, when you leave the app, or after 10 quiet minutes. A note on permissions: Trigger Keeper asks for full photo library access only because creating and managing its own album requires it. The gallery shows only the Trigger Keeper album. Your other photos are never read. GOOD FOR Family gatherings and holiday photos. Group shots where the photographer finally gets to be in them. Solo creators who need a camera operator. Anyone tired of the 10-second timer dash. Hands-busy moments: under a sink, up a ladder, or mid-repair, when you need a clear photo of a part to send to a colleague or customer. Requires iOS 17.2 or later. Ultra-wide and telephoto options appear on devices that have those lenses.

About

Parallel

Features
Read full description

Capture the moment and your reaction. Or record once and get both portrait and landscape videos. Parallel gives you two ways to tell the whole story. RECORD ONCE. SAVE BOTH FORMATS. Dual mode uses your front or rear camera to record portrait (9:16) and landscape (16:9) videos simultaneously. Get separate files ready for vertical posts and widescreen sharing, with no need to record the moment again. TWO CAMERAS. ONE STORY. Record with the front and rear cameras together in a single video. Choose Picture in Picture, Split Screen, or Top and Bottom, then select portrait or landscape output. Capture what you see alongside your reaction, commentary, or demonstration. MAKE THE FRAME YOURS Move and resize the floating camera, choose a square or portrait shape, and swap which camera takes the main view. Remove the front-camera background to place yourself over the scene, with processing handled directly on your device. PREVIEW. SAVE. SHARE. Browse your recordings in the gallery, play them back, and save your favorites to Photos. Share either format individually or both videos together. PRIVATE BY DESIGN Your recordings stay on your device until you choose to save or share them. No account required. Available in English and Vietnamese. Simultaneous front and rear camera recording requires a compatible device. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://buddyapp.net/apps/parallel/privacy

Screenshots

Trigger Keeper4 screens
Parallel4 screens

Verdict

The call

The clearest difference is price: Parallel at Free against Trigger Keeper's $4.99. Trigger Keeper's advantage is in-app purchases (none vs 3). On ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Parallel is free to download; Trigger Keeper costs $4.99 up front. Parallel sells 3 in-app purchases, starting at $1.99 per month. Trigger Keeper asks for nothing beyond the download.

Scorecard2 real differences ยท 4 level
Trigger Keeper versus Parallel: the parameters behind the verdict, then further details
ParameterTrigger KeeperParallel
Price$4.99Free โ€” better
Update frequencyโ€”Every 2 days
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhoneiPhone, iPad โ€” better
Requires iOS17.2 โ€” better18.0
Further details โ€” not scored
Size2 MB16 MB
Age rating4+4+
DeveloperBrian UkestadHoa Bui Duy

In-app purchases

None

Trigger Keeper

No in-app purchases

3 purchases

Parallel

Subscriptions2
  • Parallel Pro Monthly$1.991 Month
  • Parallel Pro Yearly$9.991 Year
One-time1
  • Parallel Pro Lifetime$29.99

Questions

Is Trigger Keeper free?
Trigger Keeper costs $4.99, with no in-app purchases.
Is Parallel free?
Parallel is free to download, with in-app purchases available.
Do Trigger Keeper or Parallel have ads?
Neither Trigger Keeper nor Parallel shows ads.

Other comparisons