Comparison

USEN Camera Viewer vs Preflop Range Builder

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

Head to head
About

USEN Camera Viewer

View security camera footage and in-store live streams from your smartphone. Capture video, set motion detection alarms, and remotely control pan and tilt functions for a wider view. Share live streams securely via QR code.

Highlights
  • Remote IP camera viewing
  • Motion detection alarms
  • Video capture and recording
  • Pan and tilt control
  • QR code live stream sharing
  • Multi-camera split-screen view
Features
Read full description

防犯カメラと店内ビューアを兼ねるIPカメラ「USEN Camera」がスマホで確認出来ます。 こちらのアプリは、非常駐タイプになりますのでアプリを閉じるだけで通信は終了されますので、スマホのデータ通信量や電池の消耗も少なく済みます。 ◆防犯カメラとしての便利な機能 ・録画した映像からのキャプチャー取得や動画ファイル取得もスマホで行うことが出来ますので、パソコン無しでも録画の確認が容易に行えます。 ・画面内に動きがある場合のみ録画を行う動体検知アラーム設定とアラームでの録画設定が出来ます。こちらは最大録画時間も増えますので、メリットも多くオススメの設定です。 ◆店内ビューアとしての便利な機能 ・便利なパン&チルト機能付きのカメラになりますので、天井設置の場合は映像を水平方向に345度、垂直方向に117度の回転が出来ます。1台のカメラでも店内をより広い範囲での視聴も可能です。 ・QRコードでライブ視聴のみに限定したシェアが出来ますので、セキュリティ性の高い情報共有が図れます。 ・4分割画面で複数カメラの同時視聴が出来ます。  ※分割視聴はデータ量が多くなるため、Wi-Fi環境での視聴を推奨致します。

About

Preflop Range Builder

Features
Read full description

Preflop Range Builder is for making your own poker hand range charts — not for reading someone else's. You get a 13x13 grid of all 169 starting hands. Drag across it and paint the hands into tiers you define yourself. PAINT WITH YOUR FINGER Drag to fill cells in one stroke. Tap a painted cell again with the same rank to clear it. Undo and redo work one stroke at a time, so fine adjustments are quick. Haptics confirm every change. DEFINE YOUR OWN RANKS You start with eight: SS, S, A, B, C, D, F and Borderline. Every name, colour and count is yours to change. Ranks can be solid or outlined, so a "maybe" region can look like one. Each rank carries a note, which is where the condition lives — how many players are left behind you, what stack depth, whatever you actually use to decide. SEE HOW WIDE YOU ARE The breakdown shows how many of the 169 hands sit in each rank, and what share of the range that is. In landscape it sits beside the chart, so you can watch the range widen as you paint. SHARE AS ONE IMAGE Export the chart and its breakdown as a single card. Save it to Photos or send it straight to someone. Useful when you want to compare ranges with the people you play with. FULL SCREEN, AND IT ROTATES Show the chart on its own, filling the screen. Rotate it 90 degrees at a time so the person across the table reads it the right way up. BUILT FOR LANDSCAPE On iPhone the app stays in landscape, so the chart uses the full height of the screen with the controls beside it. iPad works in both orientations. THE GRID FOLLOWS THE STANDARD Rows and columns run A, K, Q, J, T, 9, 8, 7, 6, 5, 4, 3, 2. Pairs on the diagonal, suited above it, offsuit below. The same orientation as the charts in books and other tools, so nothing needs re-reading. ALSO - Duplicate and delete ranges - Everything is saved, and survives a restart - System, Light or Dark appearance PRICE Free, with ads. Creating your third or later chart requires watching a video ad. There are no in-app purchases. YOUR DATA Charts are stored on your device and never sent to a server. There is no account and no sign-in. Back-ups are up to you — deleting the app deletes your charts. Note: this is a study and reference tool. There is no gameplay, no wagering and no money of any kind in the app.

Screenshots

USEN Camera Viewer4 screens
Preflop Range Builder4 screens

Verdict

The call

The clearest difference is ads: USEN Camera Viewer at none against Preflop Range Builder's shown. USEN Camera Viewer also leads on iOS requirement (11 vs 17.0). Preflop Range Builder's advantage is update cadence (every 8 days vs every 3 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

USEN Camera Viewer ships an update every 3 months, Preflop Range Builder every 8 days. Both last shipped on October 13, 2026.

Scorecard3 real differences · 5 level
USEN Camera Viewer versus Preflop Range Builder: the parameters behind the verdict, then further details
ParameterUSEN Camera ViewerPreflop Range Builder
PriceFreeFree
Positive reviews0.0% of reviews—
Update frequencyEvery 3 monthsEvery 8 days — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS11 — better17.0
Further details — not scored
Size58 MB4 MB
Age rating4+4+
DeveloperUSENSeishin Miyaji

In-app purchases

None

USEN Camera Viewer

No in-app purchases

None

Preflop Range Builder

No in-app purchases

Questions

Is USEN Camera Viewer free?
USEN Camera Viewer is free to download, with no in-app purchases.
Is Preflop Range Builder free?
Preflop Range Builder is free to download, with no in-app purchases.
Do USEN Camera Viewer or Preflop Range Builder have ads?
Preflop Range Builder shows ads; USEN Camera Viewer does not.
Which is updated more often, USEN Camera Viewer or Preflop Range Builder?
USEN Camera Viewer ships an update every 3 months, and Preflop Range Builder every 8 days. Most recently, USEN Camera Viewer was updated on October 13, 2026 and Preflop Range Builder on October 13, 2026.

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