Comparison

PB Smart vs DrainMaster Plus

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

Head to head

PB Smart

Smart Lviing One Tap Away

About

PB Smart

Features

Read full description

Control tent lights & fans via Bluetooth/WiFi. Group device management & climate control. Free trial!

About

DrainMaster Plus

Features

Read full description

DrainMaster Plus is the plant-centered app for monitoring and managing nutrient health. Each plant has its own profile, measurement history and tailored recommendations to help you avoid overfeeding, salt build-up and pH issues. Features: Plant-centered UX: Individual dashboards with measurements, analytics and recommendations Guided measurement wizard and quick mode BLE integration: Automatic live readings from Apera instruments (PC60-Z, PH60-Z, EC60-Z, etc.) Timeline and milestones: germination date, stage logs, and plant events Scientific tools: VPD, DLI and EC/PPM calculators Offline-first: Works fully without internet Multilingual: Now available in 10 languages – German, English, French, Italian, Dutch, Polish, Russian, Spanish, Turkish, and Arabic. Export: JSON and CSV per plant Why DrainMaster Plus? Accurate readings, transparent history and actionable recommendations let you spot trends early and take targeted action. Great for hobby growers and professionals alike. Terms of Use (EULA): Apple’s Standard End User License Agreement applies, available at https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://drain-master.de/privacy

Screenshots

PB Smart4 screens

DrainMaster Plus4 screens

Verdict

The call

The clearest difference is in-app purchases: PB Smart at none against DrainMaster Plus's 1. PB Smart also leads on update cadence (weekly vs every 2 weeks) and iOS requirement (13.0 vs 15.1). On price, ads 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. DrainMaster Plus sells 1 in-app purchase, starting at $3.99 per month. PB Smart asks for nothing beyond the download.

UpkeepUpdate frequency

PB Smart ships an update weekly, DrainMaster Plus every 2 weeks. The most recent releases landed on September 17, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 3 level

PB Smart versus DrainMaster Plus: the parameters behind the verdict, then further details
Parameter	PB Smart	DrainMaster Plus
Price	Free	Free
Update frequency	Weekly — better	Every 2 weeks
Ads	No	No
In-app purchases	No — better	Yes
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	13.0 — better	15.1
Further details — not scored
Size	48 MB	67 MB
Age rating	4+	12+
Developer	Shenzhen Pinbanke Technology Co., Ltd.	kobosil.me Development

In-app purchases

None

PB Smart

No in-app purchases

1 purchases

DrainMaster Plus

Subscriptions1

DrainMaster Cloud Monthly$3.991 Month

Questions

Is PB Smart free?

PB Smart is free to download, with no in-app purchases.

Is DrainMaster Plus free?

DrainMaster Plus is free to download, with in-app purchases available.

Do PB Smart or DrainMaster Plus have ads?

Neither PB Smart nor DrainMaster Plus shows ads.

Which is updated more often, PB Smart or DrainMaster Plus?

PB Smart ships an update weekly, and DrainMaster Plus every 2 weeks. Most recently, PB Smart was updated on September 17, 2026 and DrainMaster Plus on September 23, 2026.