Human Expertise.
AI Efficiency. Your Choice.
Jack AI with some human assistance handles the daily admin across your client portfolio—so your month-end close becomes a review, not a rebuild.
Trusted by leading accounting firms












































Shift Billable Time to Higher-Value Work
Remove transactional work from your team's plate. Create capacity for advisory, tax planning, and strategic consulting.
Pick and Mix Per Client
Every client is different. Some need full managed bookkeeping. Others just need help during busy periods. You choose the service level that fits — and change it whenever you need to.
From Data Entry to Advisory
Clients don't pay premium fees for transaction coding. They pay for insight, strategy, and guidance. Free your team to deliver what clients actually value.
Same-Day Processing
Documents uploaded in the morning are processed by end of day. No backlogs. No month-end scramble.
Full Audit Trail. Your Review. Your Control.
Every decision is logged and explainable. You review and approve before anything posts. Maintain full visibility without doing the work yourself.
AddCapacityWithout Adding Headcount
Every client runs on Jack. When you need more than AI, add human processing power — select per client, change any month.
JackPlus
From extraction to bank-reconciled, query-resolved, ready-to-post. You review and publish.
- •Transaction volumes are spiking and your team can't keep up
- •Complex clients with high data quality requirements
- •You want extraction-to-ledger without hiring
- •Need a safety net during staff transitions
- AI extraction with human verification
- Bank reconciliation completed
- Query resolution via Comms Hub
- Ready-to-post entries delivered
- Same-day processing SLA
JackPod
We run the entire bookkeeping function. You review the trial balance and talk to your client.
- •You want to offer bookkeeping without building a team
- •Capacity gaps from unexpected departures
- •Scaling client base without linear headcount
- •Freeing senior staff for advisory work
- Full month-end delivery to trial balance
- Dedicated processing team assigned
- You review and approve before publish
- 7-day month-end close guarantee
- Complete audit trail maintained
Move Clients Between Levels
New client, team stretched? Add them to JackPod.
Hired someone great? Bring clients back in-house.
Busy season? Scale up. Quiet month? Scale down.
Your practice. Your pace.
Why Humans Stay In The Loop
We could let AI post directly to your ledger. We choose not to — yet.
95% Accurate Isn't Good Enough
An AI that's 95% accurate on day one sounds impressive — until the 5% it gets wrong are the transactions that actually matter. Complex VAT treatments. Unusual invoice layouts. Business changes your software hasn't seen.
Every Correction is a Training Signal
When your team corrects Jack, that's not wasted time — it's building intelligence. Every edge case becomes institutional memory. Every fix makes Jack smarter for that client.
Your Logic, Learned from Your Team
By the time Jack runs autonomously on a client, it won't be guessing. It'll be applying your logic, learned from your team's decisions, on your terms.
"This is the transfer period. We're not rushing it."
Why AI Cannot Be Pre-Trained on Your Data
The data Jack needs to work for you doesn't exist anywhere else.
Client Ledgers Are Private
Your clients' ledgers and coding decisions are proprietary. They've never been published online. No generic AI model has ever seen them.
Email Context Is Unique
How you resolved queries, the communication patterns with each client, the context behind decisions — this exists only in your practice. No AI can guess it.
No Generic Model Fits
A pre-trained model might know general accounting rules. But it can't know your specific clients, your chart of accounts preferences, or your team's judgment calls.
Training Starts Day One
This isn't a limitation — it's by design. Jack learns from your team's actual decisions, building client-specific intelligence that no generic model could ever provide.
Start with a JackPlus Pilot
We recommend starting with JackPlus on up to 30% of your portfolio. Exact selection depends on your capacity constraints or growth urgency.
Select Your Pilot Clients
Choose a representative slice of your portfolio — typically clients with higher transaction volumes or pressing capacity needs.
Jenesys Runs JackPlus Onboarding
Our team handles the initial setup. We configure Jack for your chart of accounts, integrations, and workflows.
Your Team Validates
Review Jack's work, make corrections, and approve. Every correction teaches Jack your preferences.
Scale as Confidence Grows
Add more clients to JackPlus, move some to JackPod, or keep things as they are. You're in control.
Pilots Available
Not sure how many clients to start with? We'll help you map the right pilot size based on your current capacity and growth goals.
Discuss During Your DemoQuick Comparison
| Service Level | What You Get | Pricing |
|---|---|---|
Jack AI Only | AI extraction, auto-categorisation, your team reviews and posts | Included in subscription |
JackPlus AI + Human Verification | Human-verified, bank-reconciled, query-resolved entries ready to post | GBP 0.30/transaction |
JackPod Managed Month-End | Complete month-end delivery to trial balance with dedicated team | From GBP 0.45/transaction |
Not sure which level fits your clients?
Book a Demo — We'll Help You Map It OutReady to Add Capacity?
Book a demo to see how JackPlus and JackPod can fit your portfolio. We'll help you identify the right mix for your practice.