Comparison

Live BMS vs Knot Now

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

Head to head
About

Live BMS

Monitor multiple LiFePO4 batteries from a single dashboard. View real-time data like charge, voltage, temperature, and cycle count. Get estimates for time to full or empty, and track battery health and performance.

Highlights
  • Unified dashboard for all batteries
  • Real-time charge, voltage, and current
  • Per-cell voltage monitoring
  • Time to full/empty estimates
  • Battery bank grouping
  • Trip tracking and history
  • Remote output control
Features
Read full description

Live BMS puts every one of your lithium batteries on a single, beautiful dashboard — no more switching between manufacturer apps. Connect over Bluetooth to your LiFePO4 packs and watch what actually matters, live: state of charge, pack voltage, current, per-cell voltages, temperature, cycle count, and health. A liquid-fill charge ring and clear in/out power flow make each battery readable at a glance, and a running estimate tells you how long until the pack is full while charging or empty while it's under load. Built for people running more than one battery — on a boat, an RV, a van, or an off-grid solar setup. WATCH FROM ANYWHERE (OPTIONAL) Add the Live BMS Link, a small Wi-Fi bridge that sits with your batteries, and your dashboard keeps updating when you're nowhere near the boat. Without it, Live BMS works exactly as it always has — Bluetooth only, nothing leaves your phone. FEATURES • One dashboard for all your batteries, updating in real time • Auto-detects supported BMS units — no fiddling with settings • Live "time to full" and "time to empty" at the current rate • Battery banks: group the packs wired together and see one combined charge, power draw, and runtime • Trip tracking: compare where you started to now, burn rate, and days remaining at your current use • Per-cell voltage bars and imbalance so you can spot a weak cell • History charts for charge, voltage, and current • Remote output on/off, including a master switch for all batteries • Alerts for low charge, high temperature, and cell imbalance — with plain-language guidance on what to set • Optional Live BMS Link accessory for checking your batteries from anywhere • Fahrenheit or Celsius, and Light / Dark / System themes FREE VS PRO The free version shows live charge and voltage for one battery — so you can prove it works with your hardware before paying anything. A single $4.99 unlock adds everything else: full telemetry, trips, history, alerts, power control, banks, and unlimited batteries. SUPPORTED BATTERIES Works with LiTime, Power Queen, and Redodo LiFePO4 batteries, plus common JBD / Xiaoxiang, JK-BMS, and Daly BMS units. More families are being added. PRIVACY Live BMS has no accounts, no ads, and no analytics. It talks directly to your batteries over Bluetooth and stores your history on your phone. If you add the optional Live BMS Link, your own battery readings pass through our server so you can see them remotely — nothing else does, and none of it is tied to your name, your email, or anything that identifies you. Note: Live BMS is an independent app and is not affiliated with or endorsed by LiTime, Power Queen, Redodo, or any BMS manufacturer.

About

Knot Now

Learn to tie over 200 knots with interactive 3D animations and step-by-step lessons. Organized by real-world use, it offers detailed comparisons and offline access for all your knot-tying needs.

Highlights
  • 225+ knots with 3D animations
  • Step-by-step lessons
  • Organized by real-world use
  • Offline functionality
  • Knot comparison tool
  • Progress tracking
Features
Read full description

Knot Now is an offline field guide to 225 knots, animated in 3D, with step-by-step lessons you can follow at your own pace. BROWSE BY REAL-WORLD USE Knots are organized into camping, climbing, boating, fishing, rescue, arborist, pioneering, decorative, and rope care, plus a curated Essentials set of the eight knots worth learning first. Search by name, use, or classic reference number (ABoK). LEARN STEP BY STEP Every knot has a slow, scrubbable 3D animation you can rotate, zoom, and play back at 0.5x-2x speed, paired with plain-language steps. Jump a step at a time, or drag the timeline to any point in the tie. KNOW THE TRADEOFFS Each knot lists what it is good for, its strengths, and what to watch out for, plus a one-tap comparison against a similar alternative for when two knots do almost the same job. CAST TO A BIGGER SCREEN Send any lesson to a nearby TV or Mac over AirPlay. The lesson video is generated on your device — nothing is uploaded anywhere. TRACK YOUR OWN PROGRESS Mark knots as favorites, add them to a practice list, or mark them mastered, and keep field notes on any knot. Everything stays on your device. Knot Now works fully offline. No account, no sign-in, and no network connection required. For any knot used in climbing, rescue, arborist work, or another life-safety context, verify the finished knot and technique with a qualified instructor. The animations are a learning aid, not a substitute for training.

Screenshots

Live BMS4 screens
Knot Now3 screens

Verdict

The call

The clearest difference is rating: Live BMS at 5.0 against Knot Now's 1.0. Knot Now's advantage is monetization model (free vs free with in-app purchases). On price, ratings volume, ads and in-app purchases 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.

ReceptionRating · Positive reviews · Number of ratings

Live BMS holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Scorecard2 real differences · 7 level
Live BMS versus Knot Now: the parameters behind the verdict, then further details
ParameterLive BMSKnot Now
PriceFreeFree
Rating5.0 (2 ratings) — better1.0 (1 ratings)
Number of ratings2 — better1
Update frequencyEvery 6 days—
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS17.0 — better18.0
Further details — not scored
Size4 MB6 MB
Age rating4+4+
DeveloperTim JonesNow Studio LLC

In-app purchases

None

Live BMS

No in-app purchases

None

Knot Now

No in-app purchases

Questions

Is Live BMS free?
Live BMS is free to download, with no in-app purchases.
Is Knot Now free?
Knot Now is free to download, with no in-app purchases.
Which has better reviews, Live BMS or Knot Now?
Live BMS is rated higher. Live BMS averages 5.0 out of 5 from 2 ratings, while Knot Now averages 1.0 from 1 ratings.
Do Live BMS or Knot Now have ads?
Neither Live BMS nor Knot Now shows ads.

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